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1.
Prog Orthod ; 25(1): 12, 2024 Mar 25.
Artículo en Inglés | MEDLINE | ID: mdl-38523193

RESUMEN

BACKGROUND: Mutations in one or multiple genes can lead to hypodontia and its characteristic features. Numerous studies have shown a strong genetic influence on the occurrence of hypodontia, and identified several genes, including AXIN2, EDA, FGF3, FGFR2, FGFR10, WNT10A, MSX1, and PAX9, that are directly associated with dental agenesis and carcinogenesis. The objective of this study was to investigate the occurrence and pattern of tooth agenesis, microdontia, and palatally displaced canine (PDC) in women diagnosed with papillary thyroid cancer (PTC), compared to a control group of women without any malignancy or thyroid disease. MATERIALS AND METHODS: This case-control study was carried at the Department of Orthodontics, School of Dental Medicine University of Zagreb, and Department of Oncology and Nuclear Medicine Sestre Milosrdnice University Hospital Centre. The study involved a clinical examination and evaluation of dental status, panoramic X-ray analysis, and assessment of medical and family history of 116 female patients aged 20-40 with PTC, as well as 424 females in the control group who were of similar age. RESULTS: The prevalence of hypodontia, microdontia, and PDC was statistically higher in women with PTC than in the control group. The prevalence rate of hypodontia was 11.3% in the experimental group and 3.5% in the control group. The experimental group showed a higher occurrence of missing upper lateral incisors, lower left central incisors, and all the third molars (except the upper left) compared to the control group. Women with PTC showed the prevalence of PDC significantly higher than the control group (3.5%, 0.7%, p = 0.002). The probability of hypodontia as a clinical finding increases 2.6 times, and microdontia occurs 7.7 times more frequently in women with PTC. CONCLUSION: Our study suggests a possible link between odontogenesis and PTC. The absence of permanent teeth may increase the likelihood of PTC in women. Leveraging the age-7 orthopantomogram to identify women at high risk for PTC within a critical early detection window could significantly improve oral health outcomes and PTC prognosis through proactive interventions.


Asunto(s)
Neoplasias de la Tiroides , Anomalías Dentarias , Femenino , Humanos , Anodoncia/epidemiología , Anodoncia/complicaciones , Estudios de Casos y Controles , Factores de Riesgo , Cáncer Papilar Tiroideo/complicaciones , Neoplasias de la Tiroides/complicaciones , Anomalías Dentarias/complicaciones , Adulto Joven , Adulto
2.
BMJ Case Rep ; 17(2)2024 Feb 14.
Artículo en Inglés | MEDLINE | ID: mdl-38355206

RESUMEN

Goltz-Gorlin syndrome is a rare X-linked inherited disorder associated with PORCN (porcupine homolog-Drosophila) gene mutation. It primarily affects the skin and its appendages. The characteristic cutaneous features include a blaschko-linear pattern, skin atrophy, pigmentary changes, and telangiectasia. The oral manifestations have been reported in more than half of the affected individuals. The most common oral findings include enamel hypoplasia, hypodontia, supernumerary teeth, microdontia, vertical grooving of the teeth, taurodontism, fusion, and abnormal root morphology reported in sporadic cases. The objective of this case report is to describe the dentofacial characteristics of a middle childhood aged girl with Goltz-Gorlin syndrome.


Asunto(s)
Hipoplasia Dérmica Focal , Anomalías Dentarias , Diente Supernumerario , Niño , Femenino , Humanos , Aciltransferasas/genética , Hipoplasia Dérmica Focal/complicaciones , Hipoplasia Dérmica Focal/genética , Proteínas de la Membrana/genética , Mutación , Piel , Anomalías Dentarias/complicaciones , Diente Supernumerario/complicaciones
3.
BMC Oral Health ; 23(1): 776, 2023 10 21.
Artículo en Inglés | MEDLINE | ID: mdl-37865729

RESUMEN

BACKGROUND: The aim of this study was to determine whether there is any association between molar incisor hypomineralization and developmental dental anomalies. METHODS: Two pediatric dentists evaluated panoramic radiographs of 429 children aged 8-14 years with molar incisor hypomineralization (study group) and 437 children without molar incisor hypomineralization (control group) in terms of developmental dental anomalies. Twelve different developmental dental anomalies were categorized into four types: size (microdontia, macrodontia); position (ectopic eruption of maxillary permanent first molars, infraocclusion of primary molars); shape (fusion, gemination, dilaceration, taurodontism, peg-shaped maxillary lateral incisors); and number (hypodontia, oligodontia, hyperdontia) anomalies. RESULTS: No significant difference was observed in the frequencies of developmental dental anomalies between the study and control groups in total, females, and males (p > 0.05). A statistically significant difference was found between the distribution of developmental size, position, shape, and number anomalies between the study and control groups (p = 0.024). The most common anomaly in both groups was hypodontia (6.3% and 5.9%, respectively). There was a significant difference between the study and control groups in terms of subtypes of shape anomaly in all children and females (p = 0.045 and p = 0.05, respectively). CONCLUSIONS: While a significant difference was observed between the distributions of types of developmental dental anomalies between individuals with and without molar incisor hypomineralization, there was no difference in terms of the frequency of developmental dental anomalies.


Asunto(s)
Anodoncia , Hipoplasia del Esmalte Dental , Hipomineralización Molar , Anomalías Dentarias , Diente Supernumerario , Masculino , Niño , Femenino , Humanos , Anodoncia/diagnóstico por imagen , Anodoncia/epidemiología , Estudios de Casos y Controles , Anomalías Dentarias/complicaciones , Anomalías Dentarias/diagnóstico por imagen , Anomalías Dentarias/epidemiología , Diente Molar/diagnóstico por imagen , Diente Molar/anomalías , Prevalencia , Hipoplasia del Esmalte Dental/complicaciones , Hipoplasia del Esmalte Dental/epidemiología
4.
Eur J Orthod ; 45(6): 731-738, 2023 11 30.
Artículo en Inglés | MEDLINE | ID: mdl-37452680

RESUMEN

OBJECTIVE: The aim of this study was to assess the frequency of mandibular second premolar (MnP2) distoangulation among orthodontic patients and the angular changes after a longitudinal follow-up. METHODS: The sample was collected from the orthodontic records of 865 patients. The distoangulation group was composed of 42 patients (mean age 9.29 ±â€…1.24 years, 16 male, 26 female) with distoangulation of MnP2. The control group was composed of 32 patients (mean age 9.38 ±â€…1.10 years, 15 male, and 17 female) without distoangulation of MnP2. Panoramic radiographs taken in the mixed (T1) and the early permanent dentition (T2) were analyzed in both groups. Longitudinal angular changes (distal angle θ and premolar-molar angle γ), degree of root formation, second premolar depth, and prevalence of associated dental anomalies were analyzed. Intergroup comparison was performed with Mann-Whitney, t-tests, and chi-square tests (P < 0.05). RESULTS: The prevalence of MnP2 distoangulation in the mixed dentition was 4.85%. The distoangulation group showed a smaller initial distal angle (59.34o ±â€…8.41) when compared to control group (79.88o ±â€…7.60). The spontaneous eruption of the MnP2 with distoangulation was observed in 76.57% of the sample. MnP2 distoangulation was significantly associated with agenesis of its antimere, small maxillary lateral incisors, and deciduous molar infraocclusion. LIMITATIONS: Severe cases of MnP2 distoangulation were absent in this study. CONCLUSIONS: The frequency of MnP2 distoangulation among orthodontic patients was 4.85%. Mild to moderate distoangulated Mnp2 spontaneously uprighted from the mixed to the permanent dentition. Small lateral incisors, second premolar agenesis, and infraocclusion of deciduous molar were frequently found in cases with MnP2 distoangulation.


Asunto(s)
Anomalías Dentarias , Erupción Ectópica de Dientes , Humanos , Masculino , Femenino , Niño , Dentición Permanente , Diente Premolar/diagnóstico por imagen , Estudios de Seguimiento , Anomalías Dentarias/complicaciones , Anomalías Dentarias/epidemiología , Dentición Mixta
5.
Eur Arch Paediatr Dent ; 24(3): 401-407, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-37046044

RESUMEN

PURPOSE: To investigate the significance of association between maxillary impacted canines and various dental anomalies. METHODS: Files of 874 orthodontic patients were evaluated for the presence of maxillary impacted canines. From this sample, a group of 97 patients (39 males and 58 females) with at least 1 impacted maxillary canine consisted the study group. This group was compared to a control group of 97 patients (42 males and 55 females) that was created by random selection from the initial sample without maxillary canine impaction. The impaction diagnosis was made from the panoramic radiographs. Chi-square test was used to perform the analysis for significant associations. Stepwise discriminant analysis, binary logistic regression and classification tree were used to identify best combinations. RESULTS: Statistically significant difference was found for peg-shaped maxillary lateral incisors and infraoccluded deciduous molars. The presence of peg-shaped upper lateral incisors arises the probability of impacted canine to 83.3%, a distal displaced unerupted second premolar to 63.16% and the impaction of any other teeth to 80% as showed by the classification tree. CONCLUSIONS: The presence of peg-shaped maxillary lateral incisors and infraocclusion of deciduous molars can be considered major valuable early risk indicators for maxillary canine impaction, because they manifest before the maxillary canine eruption. Special consideration should be given on distal displaced unerupted second premolar and the impaction of any other teeth. Patients with these dental anomalies are candidates for future interceptive treatment for canine eruption.


Asunto(s)
Anomalías Dentarias , Diente Impactado , Niño , Femenino , Humanos , Masculino , Diente Canino/diagnóstico por imagen , Diente Canino/anomalías , Dentición Mixta , Maxilar/diagnóstico por imagen , Radiografía , Anomalías Dentarias/diagnóstico por imagen , Anomalías Dentarias/complicaciones , Diente Impactado/diagnóstico por imagen , Diente Impactado/etiología
6.
Zhonghua Er Ke Za Zhi ; 61(4): 345-350, 2023 Apr 02.
Artículo en Chino | MEDLINE | ID: mdl-37011981

RESUMEN

Objective: To analyze the clinical and genetic characteristics of pediatric patients with dual genetic diagnoses (DGD). Methods: Clinical and genetic data of pediatric patients with DGD from January 2021 to February 2022 in Peking University First Hospital were collected and analyzed retrospectively. Results: Among the 9 children, 6 were boys and 3 were girls. The age of last visit or follow-up was 5.0 (2.7,6.8) years. The main clinical manifestations included motor retardation, mental retardation, multiple malformations, and skeletal deformity. Cases 1-4 were all all boys, showed myopathic gait, poor running and jumping, and significantly increased level of serum creatine kinase. Disease-causing variations in Duchenne muscular dystrophy (DMD) gene were confirmed by genetic testing. The 4 children were diagnosed with DMD or Becker muscular dystrophy combined with a second genetic disease, including hypertrophic osteoarthropathy, spinal muscular atrophy, fragile X syndrome, and cerebral cavernous malformations type 3, respectively. Cases 5-9 were clinically and genetically diagnosed as COL9A1 gene-related multiple epiphyseal dysplasia type 6 combined with NF1 gene-related neurofibromatosis type 1, COL6A3 gene-related Bethlem myopathy with WNT1 gene-related osteogenesis imperfecta type XV, Turner syndrome (45, X0/46, XX chimera) with TH gene-related Segawa syndrome, Chromosome 22q11.2 microduplication syndrome with DYNC1H1 gene-related autosomal dominant lower extremity-predominant spinal muscular atrophy-1, and ANKRD11 gene-related KBG syndrome combined with IRF2BPL gene-related neurodevelopmental disorder with regression, abnormal movement, language loss and epilepsy. DMD was the most common, and there were 6 autosomal dominant diseases caused by de novo heterozygous pathogenic variations. Conclusions: Pediatric patients with coexistence of double genetic diagnoses show complex phenotypes. When the clinical manifestations and progression are not fully consistent with the diagnosed rare genetic disease, a second rare genetic disease should be considered, and autosomal dominant diseases caused by de novo heterozygous pathogenic variation should be paid attention to. Trio-based whole-exome sequencing combining a variety of molecular genetic tests would be helpful for precise diagnosis.


Asunto(s)
Anomalías Múltiples , Enfermedades del Desarrollo Óseo , Discapacidad Intelectual , Atrofia Muscular Espinal , Distrofia Muscular de Duchenne , Anomalías Dentarias , Humanos , Estudios Retrospectivos , Discapacidad Intelectual/genética , Enfermedades del Desarrollo Óseo/complicaciones , Anomalías Dentarias/complicaciones , Facies , Distrofia Muscular de Duchenne/diagnóstico , Distrofia Muscular de Duchenne/genética , Distrofia Muscular de Duchenne/complicaciones , Atrofia Muscular Espinal/complicaciones , Proteínas Portadoras , Proteínas Nucleares
7.
Hua Xi Kou Qiang Yi Xue Za Zhi ; 41(2): 203-207, 2023 Apr 01.
Artículo en Inglés, Chino | MEDLINE | ID: mdl-37056187

RESUMEN

OBJECTIVES: This study aimed to investigate the clinical characteristics of congenital deciduous teeth absence and its permanent teeth performance type by using panoramic radiographs. METHODS: A total of 15 749 panora-mic radiographs of 3-6-year-old children with deciduous dentition were collected from January 2020 to December 2021. The incidence of congenital deciduous teeth absence was observed, and the abnormality of permanent teeth was recor-ded. SPSS 24.0 software was used for statistical analysis. RESULTS: The incidence of congenital deciduous teeth absence was 2.54% (400/15 749), which was found in 217 girls and 183 boys, and the difference between the genders was statistically significant (P=0.003). The absence of one and two deciduous teeth accounted for 99.75% (399/400) of the subjects. In addition, 92.63% (490/529) of mandibular deciduous lateral incisor was congenitally absent, 44.80% (237/529) of deciduous teeth was absent in the left jaw, and less than 55.20% (292/529) was absent in the right; the difference between them was statistically significant (P=0.017). The absence of 96.41% (510/529) deciduous teeth in the mandibular was significantly more than that of 3.59% (19/529) in the maxillary, and the difference between was statistically significant (P=0.000). Furthermore, 68.00% (272/400) and 32.00% (128/400) of deciduous teeth were absent in unilateral and bilateral, respectively, and the difference was statistically significant (P=0.000). Four types of congenital deciduous teeth absence with permanent teeth were observed as follows: 1) 73.91% (391/529) of permanent teeth was absent; 2) 20.60% (109/529) of permanent teeth was not absent; 3) the number of fused permanent teeth accounted for 4.91% (26/529); 4) the number of supernumerary teeth was 0.57% (3/529). CONCLUSIONS: Although the absence of congenital deciduous teeth is less common than that of permanent teeth, it affects deciduous and permanent teeth to some extent. Dentists should pay attention to trace and observe whether abnormalities are present in the permanent teeth and take timely measures to maintain children's oral health.


Asunto(s)
Anodoncia , Dientes Fusionados , Anomalías Dentarias , Diente Supernumerario , Masculino , Femenino , Humanos , Diente Primario , Dentición Permanente , Diente Supernumerario/complicaciones , Diente Supernumerario/epidemiología , Anodoncia/epidemiología , Anodoncia/etiología , Anomalías Dentarias/epidemiología , Anomalías Dentarias/complicaciones , Dientes Fusionados/complicaciones , Dientes Fusionados/epidemiología
8.
Oral Dis ; 29(5): 2265-2271, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-35332642

RESUMEN

OBJECTIVE: This study aimed to assess whether microcephaly is a risk factor for alterations in the chronology and sequence of tooth eruption and for developmental defects of enamel. MATHERIALS AND METHODS: In this case-control study, 81 children aged 30-36 months, including 40 normoreactive children and 41 with microcephaly, were submitted to oral clinical examination to determine the frequency of alterations in the chronology and sequence of tooth eruption and developmental enamel defects. The sample was matched for sex and age (1:1) and allocated to the case (presence of dental alterations) and control (absence of dental alterations) groups. Gestational age, birthweight and socioeconomic characteristics were also analyzed. Chi-square test and Fisher's exact test were applied (α = 0.05). RESULTS: Microcephaly was significantly associated with delayed tooth eruption, alterations in the sequence of tooth eruption, and defects in dental enamel (p < 0.001). Low birthweight also showed a significant association with this alterations (p < 0.005) and prematurity was associated with defects in enamel development (p < 0.005). CONCLUSION: Microcephaly is a risk factor for alterations in the tooth eruption process and enamel formation in primary teeth.


Asunto(s)
Hipoplasia del Esmalte Dental , Microcefalia , Anomalías Dentarias , Niño , Humanos , Hipoplasia del Esmalte Dental/epidemiología , Peso al Nacer , Microcefalia/epidemiología , Microcefalia/complicaciones , Estudios de Casos y Controles , Anomalías Dentarias/complicaciones , Factores de Riesgo , Diente Primario
9.
Prog Orthod ; 23(1): 53, 2022 Dec 30.
Artículo en Inglés | MEDLINE | ID: mdl-36581787

RESUMEN

BACKGROUND: Tooth agenesis (TA) is the developmental absence of one or more teeth and is the most common craniofacial disorder in humans. Maxillary lateral incisor agenesis (MLIA) is a specific subtype of TA and can have esthetic, functional, and psychosocial implications for patients. The aim of this study was to evaluate the prevalence of MLIA amongst patients with non-syndromic tooth agenesis, as well as its association with other dental anomalies. MATERIALS AND METHODS: The dental records of 240 patients with non-syndromic congenitally missing teeth treated at the University of Alabama at Birmingham Department of Orthodontics were reviewed. Dolphin Imaging software was used to identify missing teeth, microdonts, peg laterals, impactions, and transpositions. Data were analyzed using chi-square or Fisher's exact test. All the tests were two-sided at the significance level of 0.05 (SAS 9.4). RESULTS: In the patient cohort, MLIA prevalence was 37.5% (second most common) and no gender or ethnic differences were identified. We also observed the bilaterally missing lateral incisors more frequently than the unilateral presentation (p = 0.0006). Additionally, 62.5% of patients with unilateral MLIA displayed a contralateral tooth that was a peg (p = 0.0001); however, no association was found with other microdonts. Furthermore, of the 90 patients missing at least one maxillary lateral incisor, 42.2% were missing another tooth type and 10% of MLIA patients also had an impacted tooth (mainly maxillary canines). However, these were not statistically significant. Finally, no transposed teeth were found in our patients. CONCLUSIONS: This study found that maxillary lateral incisors were the second most frequently missing teeth. When clinicians diagnose congenital absence of a maxillary lateral incisor, the patient should be evaluated for other missing teeth, peg lateral incisors, or potential impactions, especially maxillary canines.


Asunto(s)
Anodoncia , Anomalías Dentarias , Diente Impactado , Humanos , Anodoncia/epidemiología , Anodoncia/complicaciones , Incisivo/anomalías , Anomalías Dentarias/epidemiología , Anomalías Dentarias/complicaciones , Diente Impactado/complicaciones , Diente Canino , Maxilar
10.
Clin Oral Investig ; 26(8): 5089-5103, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-35729285

RESUMEN

OBJECTIVE: To evaluate the association between orofacial clefts (OFC) and tooth abnormalities (TA). METHODS: We searched PubMed, Scopus, Web of Science, Cochrane Library, LILACS, and BBO, and in the gray literature and selected observational studies that evaluated the association between TA and OFC. The risk of bias was analyzed using the Newcastle-Ottawa Scale. A random-effects meta-analysis was performed comparing the presence and absence of OFC, cleft type-cleft palate (CP) and cleft lip with or without palate (CL/P)-and cleft laterality-unilateral and bilateral. The certainty of evidence was evaluated using the GRADE approach. RESULTS: A total of 99 studies were included in the qualitative analysis, and 37 were included in the meta-analysis. Only four studies were classified as low risk of bias. Significant associations were observed between the presence of OFC and tooth agenesis (OR = 19.46; 95%CI = 4.99-75.96), supernumerary teeth (OR = 4.04; 95%CI = 1.26-12.99), developmental defects of enamel (OR = 3.15; 95%CI = 1.28-7.80), microdontia (OR = 15.57; 95%CI = 1.06-228.51), and taurodontism (OR = 1.74; 95%CI = 1.74-2.86). Individuals with CP had a lower frequency of supernumerary teeth (OR = 0.22; 95%CI = 0.08-0.64), peg-shaped tooth (OR = 0.31; 95%CI = 0.12-0.80), and morphological TA (OR = 0.13; 95%CI = 0.04-0.45) than individuals with CL/P. No TA was significantly associated with cleft laterality (p > 0.05). The quality of the evidence was very low in all analyses. CONCLUSION: Individuals with OFC had a higher frequency of TA than those without OFC. Individuals with CP had a lower frequency of TA than individuals with CL/P. No TA was associated to cleft laterality. CLINICAL RELEVANCE: Help to identify the treatment needs of individuals affected by OFC, improving the services provided to this population.


Asunto(s)
Labio Leporino , Fisura del Paladar , Anomalías Dentarias , Diente Supernumerario , Labio Leporino/complicaciones , Labio Leporino/epidemiología , Fisura del Paladar/complicaciones , Fisura del Paladar/epidemiología , Humanos , Anomalías Dentarias/complicaciones , Anomalías Dentarias/epidemiología , Diente Supernumerario/complicaciones
12.
Oral Dis ; 28(4): 1022-1028, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-33590546

RESUMEN

OBJECTIVE: To analyze published scientific evidence about the most common orofacial disorders in children with microcephaly associated with ZIKV infection. METHODS: Through a scoping review, we respond to the search question was formulated: "What are the orofacial alterations in children with microcephaly associated with ZIKV?" It was performed a search in PubMed, EMBASE, Scopus, and Health Virtual Library. It was selected papers wrote in English, Portuguese, or Spanish. An evidence quality analysis was performed using the Agency for Healthcare Research and Quality classification. RESULTS: It was included 11 studies performed in the Brazilian Northeast region. The studies were carried out between 2018 and 2020. The main related alterations were delay in the tooth-eruption and deformation in the oral structures. CONCLUSION: The results observed in our work show moderate scientific evidence regarding the association of ZIKV with orofacial alterations in children with microcephaly due to the classifications of the quality of evidence of each one of the included studies. The main changes reported were in the chronology of tooth eruption, alteration in teeth, and oral structures.


Asunto(s)
Microcefalia , Complicaciones Infecciosas del Embarazo , Anomalías Dentarias , Infección por el Virus Zika , Virus Zika , Brasil/epidemiología , Niño , Femenino , Humanos , Microcefalia/complicaciones , Embarazo , Anomalías Dentarias/complicaciones , Erupción Dental , Infección por el Virus Zika/complicaciones
13.
BMJ Case Rep ; 14(1)2021 Jan 11.
Artículo en Inglés | MEDLINE | ID: mdl-33431460

RESUMEN

Oculodentodigital dysplasia (ODDD) is a rare congenital disorder characterised by developmental abnormalities of the eye, dentition and digits of the hands and feet, with neurological symptoms reported in 30% of individuals. Dental anomalies associated with ODDD include enamel hypoplasia and subsequent caries, microdontia, missing teeth, amelogenesis imperfecta, pulp stones and delayed tooth development. Here, we describe the comprehensive dental management of a 3-year-old girl who presented with rapid deterioration of the primary dentition due to generalised enamel hypomineralisation. Conservative, comprehensive restorative management was performed under general anaesthesia. Within 6 months, further breakdown of the remaining unrestored enamel was noted. This case documents the challenges of conservative management in dental anomalies that are not well documented due to the extreme rarity of the disorder.


Asunto(s)
Anomalías Craneofaciales/complicaciones , Atención Dental para Niños/métodos , Hipoplasia del Esmalte Dental/terapia , Anomalías del Ojo/complicaciones , Deformidades Congénitas del Pie/complicaciones , Sindactilia/complicaciones , Anomalías Dentarias/complicaciones , Anestesia General , Preescolar , Anomalías Craneofaciales/diagnóstico , Anomalías Craneofaciales/genética , Anomalías Craneofaciales/terapia , Coronas , Atención Dental para Niños/efectos adversos , Atención Dental para Niños/instrumentación , Esmalte Dental/diagnóstico por imagen , Hipoplasia del Esmalte Dental/diagnóstico , Hipoplasia del Esmalte Dental/genética , Anomalías del Ojo/diagnóstico , Anomalías del Ojo/genética , Anomalías del Ojo/terapia , Femenino , Deformidades Congénitas del Pie/diagnóstico , Deformidades Congénitas del Pie/genética , Deformidades Congénitas del Pie/terapia , Humanos , Dolor Asociado a Procedimientos Médicos/etiología , Dolor Asociado a Procedimientos Médicos/prevención & control , Linaje , Selladores de Fosas y Fisuras , Radiografía Dental , Sindactilia/diagnóstico , Sindactilia/genética , Sindactilia/terapia , Anomalías Dentarias/diagnóstico , Anomalías Dentarias/genética , Anomalías Dentarias/terapia , Diente Primario/diagnóstico por imagen
14.
Rom J Morphol Embryol ; 62(4): 1045-1050, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-35673824

RESUMEN

Agenesis of permanent maxillary and mandibular canines is very rare; one to all four can be missing, isolated or in association with other missing teeth or with dental morphology abnormalities. Such cases can present functional, esthetic, and psychological problems, since the canine's role in functional occlusion and in obtaining an aesthetic smile is crucial. Frequently, the canine's absence from the arch is caused by impaction; its congenital absence is extremely rare in patients with no associated syndrome. The aim of this paper was to present a very rare case of a non-syndromic Romanian adult female patient with a unilateral permanent maxillary missing canine, in association with peg-shaped maxillary lateral permanent incisors, which can have a genetic cause, since the same morphological abnormality was present in her father and her younger sister, who also presented a rare situation of bilateral upper transposition between the canines and lateral incisors. The association of a permanent maxillary canine hypodontia with bilateral "peg laterals" and transposition between the maxillary canine and the peg-shaped lateral incisors is also rare as a family character in healthy patients. Future statistical studies are necessary to establish the incidence of permanent maxillary canine agenesis in Romanian population. Also, the article includes a detailed literature review of reported cases of agenesis of permanent maxillary canines.


Asunto(s)
Anodoncia , Anomalías Dentarias , Diente Impactado , Anodoncia/genética , Diente Canino/anomalías , Femenino , Humanos , Incisivo , Maxilar , Anomalías Dentarias/complicaciones , Anomalías Dentarias/genética
15.
Am J Med Genet A ; 182(7): 1780-1784, 2020 07.
Artículo en Inglés | MEDLINE | ID: mdl-32302040
16.
J Med Genet ; 57(10): 699-707, 2020 10.
Artículo en Inglés | MEDLINE | ID: mdl-32152251

RESUMEN

Background Loeys-Dietz syndrome (LDS), an autosomal dominant rare connective tissue disorder, has multisystemic manifestations, characterised by vascular tortuosity, aneurysms and craniofacial manifestations. Based on the associated gene mutations along the transforming growth factor-beta (TGF-ß) pathway, LDS is presently classified into six subtypes. Methods We present the oro-dental features of a cohort of 40 patients with LDS from five subtypes. Results The most common oro-dental manifestations were the presence of a high-arched and narrow palate, and enamel defects. Other common characteristics included bifid uvula, submucous cleft palate, malocclusion, dental crowding and delayed eruption of permanent teeth. Both deciduous and permanent teeth had enamel defects in some individuals. We established a grading system to measure the severity of enamel defects, and we determined that the severity of the enamel anomalies in LDS is subtype-dependent. In specific, patients with TGF-ß receptor II mutations (LDS2) presented with the most severe enamel defects, followed by patients with TGF-ß receptor I mutations (LDS1). LDS2 patients had higher frequency of oro-dental deformities in general. Across all five subtypes, as well as within each subtype, enamel defects exhibited incomplete penetrance and variable expression, which is not associated with the location of the gene mutations. Conclusion This study describes, in detail, the oro-dental manifestations in a cohort of LDS, and we conclude that LDS2 has the most severely affected phenotype. This extensive characterisation, as well as some identified distinguishing features can significantly aid dental and medical care providers in the diagnosis and clinical management of patients with this rare connective tissue disorder.


Asunto(s)
Enfermedades del Tejido Conjuntivo/genética , Síndrome de Loeys-Dietz/genética , Receptor Tipo II de Factor de Crecimiento Transformador beta/genética , Receptor Tipo I de Factor de Crecimiento Transformador beta/genética , Anomalías Dentarias/genética , Adolescente , Adulto , Niño , Enfermedades del Tejido Conjuntivo/clasificación , Enfermedades del Tejido Conjuntivo/complicaciones , Femenino , Predisposición Genética a la Enfermedad , Humanos , Síndrome de Loeys-Dietz/clasificación , Síndrome de Loeys-Dietz/complicaciones , Masculino , Persona de Mediana Edad , Mutación/genética , Fenotipo , Anomalías Dentarias/clasificación , Anomalías Dentarias/complicaciones , Adulto Joven
18.
Pediatr Res ; 88(2): 243-249, 2020 08.
Artículo en Inglés | MEDLINE | ID: mdl-31493772

RESUMEN

BACKGROUND: The foetal alcohol spectrum disorder (FASD) is a complex and heterogenic disorder, caused by gestational exposure to alcohol. Patients with foetal alcohol syndrome (FAS-most severe form) show abnormal facial features. Our study aims at finding additional reliable and objective parameters for FAS diagnosis. METHODS: Facial three-dimensional scans of 30 children with FAS and 30 controls were analysed. Orthodontic profile analysis (concerning position of upper and lower jaw) was performed. Vertical facial proportions were taken and facial asymmetry index (right to left side) was calculated. RESULTS: Profile type was significantly different for children with FAS (p = 0.001) with lower jaws more frequently in a retral position. Profile angle was significantly larger in the group with FAS (p = 0.009). Children with FAS had shorter middle thirds and longer lower thirds of the face (p < 0.001). Stomion (point between upper and lower lip) was located significantly more caudally in the FAS group (p < 0.001). Facial asymmetry index was not significantly different. CONCLUSIONS: Children with FAS differ significantly from controls in vertical and sagittal facial measurements. Profile analysis and measurement of vertical proportions are easy to apply standard procedures in everyday orthodontic practice and could be time-saving and objective means for additional verification of FAS.


Asunto(s)
Cara/anomalías , Trastornos del Espectro Alcohólico Fetal/diagnóstico por imagen , Imagenología Tridimensional/métodos , Ortodoncia/métodos , Anomalías Dentarias/diagnóstico por imagen , Niño , Preescolar , Estudios Transversales , Reacciones Falso Positivas , Femenino , Humanos , Masculino , Mandíbula , Intercambio Materno-Fetal , Reconocimiento de Normas Patrones Automatizadas , Embarazo , Curva ROC , Reproducibilidad de los Resultados , Proyectos de Investigación , Sensibilidad y Especificidad , Anomalías Dentarias/complicaciones , Resultado del Tratamiento
19.
J. oral res. (Impresa) ; 8(6): 517-521, dic. 28, 2019. ilus
Artículo en Inglés | LILACS | ID: biblio-1224617

RESUMEN

Ameloblastic fibro-odontoma (AFO) is a mixed odontogenic tumor, which has an epithelial and mesenchymal component. It can be observed in imaging tests as a radiomixed lesion, with some authors claiming it represents only the predecessor of an odontoma. Epidemiologically, it appears between the second and third decade of life, predominantly in males and with a predilection for the posterior area of the mandible. This lesion presents a good prognosis and it responds well to enucleation by curettage with a low rate of recurrence. In the present article, two cases of ameloblastic fibro-odontoma in an unusual region of the maxilla are presented.


El Fibro-odontoma ameloblástico (FOA), es una lesión tumoral mixta de origen odontogénico, el cual tiene un componente epitelial y mesenquimático. En su imagenología se observa como una lesión radiomixta, debido a que algunos autores afirman que este no es más que el predecesor de un odontoma. Epidemiológicamente, se presenta entre la segunda y tercera década de la vida, preferencia por sexo masculino y predilección por el área posterior de la mandíbula. Es una lesión de buen pronóstico que responde bien a la enucleación por curetaje con baja tasa de recidiva. En el presente artículo, se presentan dos casos de fibro-odontoma ameloblástico en una región inusual de los maxilares.


Asunto(s)
Humanos , Masculino , Femenino , Niño , Adolescente , Anomalías Dentarias/complicaciones , Neoplasias Maxilares/complicaciones , Odontoma/complicaciones , Radiografía Panorámica , Mandíbula/diagnóstico por imagen
20.
Artículo en Inglés | MEDLINE | ID: mdl-31717945

RESUMEN

Background: Fetal alcohol spectrum disorder (FASD) is a developmental disorder with severe negative lifetime consequences. Although knowledge about the harmfulness of alcohol consumption during pregnancy has spread, the prevalence of fetal alcohol spectrum disorder is very high. Our study aims at identifying fetal alcohol syndrome (FAS)-associated dental anomalies or habits, which need early attention. Methods: Sixty children (30 FAS; 30 controls) were examined prospectively. Swallowing pattern, oral habits, breastfeeding, speech therapy, ergotherapy, physiotherapy, exfoliation of teeth, DMFT (decayed, missing, filled teeth) index, modified DDE (developmental defects of enamel) index and otitis media were recorded. Results: Swallowing pattern, exfoliation of teeth, and otitis media were not significantly different. Significant differences could be found concerning mouthbreathing (p = 0.007), oral habits (p = 0.047), age at termination of habits (p = 0.009), speech treatment (p = 0.002), ergotherapy, physiotherapy, and breastfeeding (p ≤ 0.001). DMFT (p ≤ 0.001) and modified DDE (p = 0.001) index showed significantly higher values for children with fetal alcohol syndrome. Conclusions: Children with fetal alcohol syndrome have a higher need for early developmental promotion such as speech treatment, ergotherapy, and physiotherapy. Mouthbreathing, habits, and lack of breastfeeding may result in orthodontic treatment needs. High DMFT and modified DDE indexes hint at a higher treatment and prevention need in dentistry.


Asunto(s)
Índice CPO , Trastornos del Espectro Alcohólico Fetal/fisiopatología , Boca/fisiopatología , Trastornos del Habla/complicaciones , Anomalías Dentarias/complicaciones , Consumo de Bebidas Alcohólicas/efectos adversos , Niño , Preescolar , Femenino , Humanos , Masculino , Embarazo
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