Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 3.346
Filtrar
1.
Eur J Orthod ; 46(3)2024 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-38656537

RESUMEN

INTRODUCTION: The most common treatment approaches for patients missing maxillary lateral incisors are implant replacement (IT) and orthodontic space closure (SC). Treatment techniques change and improve over time, and it is of interest to know if improvements differ between the methods. AIM: To compare the aesthetic outcome and other clinical findings in patients with one or two missing maxillary lateral incisors who were treated with a 10-year difference in time, with either orthodontic space closure or implant replacement. MATERIAL AND METHODS: A total of 88 patients were included in the study. Forty-four patients treated between 2011 and 2018 were included as the latter cohort (LC). The LC was compared to the early cohort (EC; n = 44), treated between 2001 and 2008. A total of 132 teeth was analysed: 62 teeth in the EC (28 teeth in IT cases and 34 teeth in SC cases) and 70 teeth in the LC (34 teeth in IT cases and 36 teeth in SC cases). Long-term clinical and aesthetic outcomes were evaluated. RESULTS: An improvement over time was found in crown length, BoP, papilla, the inclination of incisors, and overall appearance in IT cases and in crown colour and overbite in SC cases. A deterioration over time was found in crown length and BoP among the SC cases. CONCLUSION: Among the IT cases, an improvement in outcomes was noted over time. When comparing SC cases the colour of the crown and overbite had improved, while crown length and BoP had deteriorated over time.


Asunto(s)
Estética Dental , Incisivo , Cierre del Espacio Ortodóncico , Humanos , Incisivo/anomalías , Incisivo/patología , Femenino , Masculino , Cierre del Espacio Ortodóncico/métodos , Maxilar , Anodoncia/terapia , Factores de Tiempo , Adulto , Adolescente , Resultado del Tratamiento , Estudios Retrospectivos , Adulto Joven
2.
Eur J Dent Educ ; 28(1): 154-160, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-37379461

RESUMEN

INTRODUCTION: One of the major difficulties with respect to molar incisor hypomineralization (MIH) is its classification and differentiation from other enamel development defects (EDDs). The aim of this study was to evaluate diagnostic accuracy in dental students to classify MIH as well as its differentiation from other EDDs by combining conventional theoretical classes and e-learning-assisted pre-clinical practices. METHODS: In this one-group pre-test and post-test study, 59 second-year students assessed 115 validated photographs using the MIH Index on the Moodle learning platform. This index assesses the clinical features and extent of MIH, differentiating it from other EDDs. Students received automatic feedback after the pre-test. Two weeks later, students re-evaluated the same photographs. Both pairwise accuracy and overall diagnostic accuracy were estimated and compared for pre- and post-testing, with the area under the curve AUC, along with 95% confidence intervals (95% CI). RESULTS: The lowest diagnostic accuracy was for the ability to discriminate between white or cream-coloured demarcated opacities and hypomineralization-type defect that is not MIH. The overall pre-test accuracy was AUC = 0.83 and increased significantly post-test to AUC = 0.99 (p < .001). The overall accuracy to discriminate the extent of the lesion also increased significantly post-test (p < .001). CONCLUSION: Diagnostic skills to classify MIH can be developed by combining conventional theoretical classes and e-learning-assisted pre-clinical practices.


Asunto(s)
Hipoplasia del Esmalte Dental , Hipomineralización Molar , Humanos , Hipoplasia del Esmalte Dental/diagnóstico , Hipoplasia del Esmalte Dental/patología , Incisivo/patología , Diente Molar/patología , Prevalencia , Educación en Odontología , Estudiantes
3.
Vet Rec ; 194(1): e3409, 2024 Jan 06.
Artículo en Inglés | MEDLINE | ID: mdl-37707436

RESUMEN

BACKGROUND: Periodontitis and tooth wear are multifactorial diseases with distinct etiopathogenesis that affect the health, feed efficiency and welfare of sheep. METHODS: This study evaluated the co-occurrence of tooth wear and periodontal lesions in 129 ewes from two Brazilian flocks, clinically classified the lesions and presence of dental calculus, and identified potential pathogens in the dental biofilm of 63 ewes by polymerase chain reaction. RESULTS: Of the 129 ewes included in the study, 75 presented periodontal lesions, while all animals presented tooth wear and dental calculus. Of the animals with periodontal lesions, 16.2% had lesions in incisor teeth and 52.7% in masticatory teeth. Regarding excessive tooth wear, 38.6% had severe wear on the incisor teeth and 89.1% on the masticatory teeth. Ewes older than 36 months had a higher frequency of periodontal lesions in incisor teeth (p < 0.001) and a greater amount of dental calculus (p < 0.001), but there was no association between tooth wear and animal age. Fusobacterium nucleatum, Tannerella forsythia and Fusobacterium necrophorum predominated in periodontal lesions. LIMITATION: This study is limited by the small sample size and lack of diagnostic imaging to assess periodontal disease. CONCLUSION: The co-occurrence of periodontal lesions and excessive dental wear involving both the incisor and masticatory teeth suggests that although the two diseases have different aetiologies, they likely have common risk factors.


Asunto(s)
Enfermedades Periodontales , Enfermedades de las Ovejas , Desgaste de los Dientes , Animales , Femenino , Ovinos , Incisivo/patología , Brasil/epidemiología , Cálculos Dentales/epidemiología , Cálculos Dentales/veterinaria , Enfermedades Periodontales/patología , Enfermedades Periodontales/veterinaria , Desgaste de los Dientes/epidemiología , Desgaste de los Dientes/veterinaria , Enfermedades de las Ovejas/epidemiología
4.
J Endod ; 50(2): 164-172.e1, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-37977218

RESUMEN

INTRODUCTION: The aim of this study was to assess the prevalence of external cervical resorption (ECR) and characterize the cases of ECR using cone beam computed tomography (CBCT). METHODS: High-resolution CBCT scans of 6216 patients (2280 males and 3936 females), consecutively acquired during the period July 2021 to March 2022, were analyzed. Identified cases of ECR were characterized by 3 evaluators regarding lesion height, circumferential spread, portal of entry proximity to root canal, stage, location, and width. RESULTS: In a total of 38 patients and 40 teeth, ECR cases demonstrated an incidence of 0.61%. The median age of the patients was 39 years. Prevalence of ERC was 0.78% among males and 0.50% among females. The most affected teeth were the maxillary incisors and canines. The most frequent characteristics of the lesion were: extension up to the cervical third (47.5%), more than 270° circumferential spread (42.55%), probable pulpal involvement (57.5%), progressive stage (65%), supracrestal (52.1%) and mesial (34.7%) localization of >1 mm in size (52.1%) portals of entry. Cases with greater longitudinal involvement also showed greater circumferential progression (P = .008). There was no association between portal of entry location and bone crest or ECR reparative phase (P = .42). Inter-rater agreement ranged from good to very good. No association between portal of entry and ECR progression was observed. CONCLUSIONS: ECR showed low prevalence in the Brazilian population, affecting mostly anterior maxillary teeth of patients within a wide age range. CBCT allowed characterization of ECR lesions with good interobserver agreement.


Asunto(s)
Resorción Radicular , Masculino , Femenino , Humanos , Adulto , Resorción Radicular/diagnóstico por imagen , Resorción Radicular/epidemiología , Resorción Radicular/etiología , Prevalencia , Tomografía Computarizada de Haz Cónico/métodos , Cuello del Diente/diagnóstico por imagen , Cuello del Diente/patología , Incisivo/patología
5.
Gerodontology ; 40(3): 402-405, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37578305

RESUMEN

OBJECTIVES: This report describes an unusual case of a multilocular idiopathic bone cavity (IBC) that presented as a botryoid odontogenic cyst situated between the mandibular lateral incisor and canine in an older adult. BACKGROUND: The IBC represents an intraosseous concavity that appears radiographically as a unilocular or multilocular radiolucent lesion found in various skeletal sites, including the jaw. Atypical cases of gnathic IBC have not been appreciated in the gerodontologic literature. MATERIALS AND METHODS: The teeth adjacent to the bony lesion had normal pulpal responses to cold. A full-thickness flap was elevated and provided a direct entry into a bony concavity, which was devoid of an epithelial lining and fluid. RESULTS: The lack of a cystic lining within the empty osseous lesion following surgical entry, concomitant with the vital pulpal status of the proximal teeth, led to a diagnosis of an IBC. The bony walls underwent curettage and copious irrigation prior to primary closure. A 10-month follow-up revealed partial evidence of osseous repair. The patient will continue to be monitored. CONCLUSION: Timely surgical intervention of central lesions of the jaws may improve clinical outcomes. Variants of the IBC should be included in the differential diagnosis of multilocular lesions, particularly in the geriatric population.


Asunto(s)
Quistes Odontogénicos , Anciano , Humanos , Quistes Odontogénicos/diagnóstico por imagen , Quistes Odontogénicos/cirugía , Maxilares , Diagnóstico Diferencial , Incisivo/patología
6.
Arch Oral Biol ; 155: 105777, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37556981

RESUMEN

OBJECTIVE: Dental pathology and tooth wear data can offer valuable insights into the diet and behaviour of past populations. This study aimed to investigate the presence of dietary continuity by examining different types of dental pathology and tooth wear in a medieval sample from the United Kingdom, comparing them to earlier and later samples from the same location. DESIGN: A comprehensive examination was conducted on 41 individuals (comprising 914 permanent teeth) retrieved from the medieval cemetery of St. Owens Church in Southgate Street, Gloucester, UK. The research focused on documenting and analysing various types of dental pathology and tooth wear, such as dental caries, calculus, and tooth chipping. The frequency of these specific pathologies and wear patterns was then compared to existing literature. Additionally, non-masticatory tooth wear was also evaluated as part of the study. RESULTS: The sample exhibits high levels of carious lesions and calculus (24 % and 74 % of teeth respectively). Anterior teeth also show an elevated chipping frequency, and along with occlusal notches on the maxillary central incisors suggest teeth were regularly used for non-masticatory purposes. CONCLUSIONS: Caries frequency is similar to sites from later periods and may relate to the early adoption of consuming refined carbohydrates. However, remains from the same area, but the earlier Roman period, also shows high rates of caries and calculus, suggesting a continuation of consuming certain cariogenic foods, or certain behavioural/environmental factors, may instead be responsible for these pathology and wear patterns.


Asunto(s)
Cálculos , Caries Dental , Desgaste de los Dientes , Humanos , Caries Dental/epidemiología , Caries Dental/historia , Dentición , Incisivo/patología
7.
Medicina (Kaunas) ; 59(7)2023 Jul 23.
Artículo en Inglés | MEDLINE | ID: mdl-37512157

RESUMEN

The current paper presents a case of a 33-year-old female with an uncommon localization of a leiomyoma in the oral cavity-the anterior palatal fibromucosa and the incisive papilla. The patient referred to the Oro-Maxillo-Facial Surgery Clinic of Emergency City Hospital Timisoara, Romania, complaining of a slight discomfort in the act of mastication and the occurrence and persistence of a diastema between the upper central incisors, due to the presence of a nodule located in the anterior palatal mucosa, between the upper central incisors, without any changes of the subjacent bone structure in the anterior hard palate visible on a cone beam computed tomography image (CBCT). The lesion was removed using a surgical excisional biopsy and a histopathological examination was performed using morphological Hematoxylin-Eosin (HE) staining and additional immunohistochemical (IHC) reactions, in order to confirm the diagnosis. On microscopic examination, bundles of spindle cells were found with eosinophilic cytoplasm and vesicular nuclei, with finely granular chromatin. The immunohistochemical reactions were positive for smooth muscle actin (SMA) and desmin and negative for vimentin. The treatment of choice for leiomyoma of the oral cavity is surgical excision with clear margins, followed by periodical clinical monitoring.


Asunto(s)
Leiomioma , Femenino , Humanos , Adulto , Leiomioma/diagnóstico , Leiomioma/cirugía , Paladar Duro/patología , Biopsia , Incisivo/patología , Tomografía Computarizada de Haz Cónico
8.
Rom J Morphol Embryol ; 64(2): 241-249, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37518882

RESUMEN

BACKGROUND: The first permanent molar (FPM) is the first tooth in the permanent dentition that emerges in the oral cavity, at around the age of six and behind the deciduous teeth, thus converting the primary dentition into a mixed dentition. Its early formation represents a risk factor for the onset of hard dental tissues disorders, the most common being the molar incisor hypomineralization (MIH). AIM: The aim of the study was to assess the hypomineralization type of developmental defects of enamel at FPM level during the mixed dentition stage, in a group of Romanian children. PATIENTS, MATERIALS AND METHODS: The research was conducted on 87 patients, 44 females and 43 males, divided into the following age groups: 5-6 years, 6-7 years, 7-8 years, 8-9 years, 9-10 years, 10-11 years, 11-12 years and older than 12 years. All children were examined in the dental office by a pediatric dentist. RESULTS: Of the subjects, 40.2% presented hypomineralization lesions on the FPM. Among the affected children, 62.9% were girls and 37.1% were boys. Mild forms were the most prevalent, being found in 71.4% of the affected subjects. Moderate forms were present in 22.9% and severe forms in 5.7% of the affected children. MIH prevalence significantly decreased with increasing age. Only two children belonging to the group 8-9 years and 10-11 years, respectively, showed severe MIH lesions. Statistically significant differences were determined in what regards the distribution of MIH children according to the severity of the lesions in relation to age (p=0.007). CONCLUSIONS: Children 6- to 7-year-old have been the most affected by FPM hypomineralization, which indicates the need for early management of the disease, through a thorough diagnosis, and preventive and interceptive therapeutic approaches.


Asunto(s)
Dentición Mixta , Incisivo , Masculino , Niño , Femenino , Humanos , Preescolar , Incisivo/patología , Diente Molar/patología , Dentición Permanente , Prevalencia , Esmalte Dental
9.
Sci Rep ; 13(1): 8582, 2023 05 26.
Artículo en Inglés | MEDLINE | ID: mdl-37237023

RESUMEN

This study was undertaken to determine the prevalence of molar incisor hypomineralization (MIH) in Syrian children and to provide information about clinical patterns and severity of MIH lesions. A sample of 1138 children aged 8-11 years was recruited for this cross-sectional study. The diagnosis of MIH was made using the criteria of the European Academy of Paediatric Dentistry (EAPD) and the MIH/HPSMs short charting form was used to score the index teeth. The results showed that the prevalence of MIH in Syrian children was 39.9%. Demarcated opacities were the most prevalent pattern of MIH defects on Permanent first molars (PFMs) and permanent incisors (PIs). Spearman rank correlation showed that the mean number of PIs and HPSMs with MIH increased when the number of affected PFMs was increased (P < 0.001). Chi-square test resulted that girls showed a higher number of severe PFMs than boys did with a statistically significant difference (x2 = 133.1, P < 0.05). Moreover, Chi-square test showed that the number of severe PFMs is higher than the number of severe PIs with a statistically significant difference (x2 = 54.9, P < 0.05). In addition, the mean dmft/DMFT index in children with MIH was found to be significantly higher than children without MIH (P < 0.05). The findings emphasize the need for early identification and management of MIH in children to prevent adverse effects on their oral health.


Asunto(s)
Hipomineralización Molar , Masculino , Femenino , Humanos , Niño , Estudios Transversales , Prevalencia , Siria/epidemiología , Incisivo/patología
10.
Eur J Paediatr Dent ; 24(2): 139-143, 2023 06 09.
Artículo en Inglés | MEDLINE | ID: mdl-37042091

RESUMEN

AIM: This study aims to find the prevalence of MIH in children in the city of Fujairah, United Arab Emirates, utilising the current standardised guidelines for diagnosis and calibration. BACKGROUND: Molar-Incisor Hypomineralization (MIH) prevalence in paediatric patients has been widely studied. However, most of the available studies have utilised criteria that did not offer consistent diagnostic and calibration tools, which resulted in incomparable results. METHODS: Cross-sectional study. One hundred sixty-two school children aged 7-9 years in the city of Fujairah, UAE have been randomly selected and orally examined for the presence of MIH lesions. This was conducted following Ghanim et al. [2015] guidelines and after calibrating examiners following Ghanim et al. [2017] training manual. CONCLUSION: MIH prevalence was high in the city of Fujairah, UAE. More studies utilising the standardised criteria are required for valid comparisons. Further research on the aetiology of MIH is also needed.


Asunto(s)
Hipoplasia del Esmalte Dental , Hipomineralización Molar , Humanos , Niño , Hipoplasia del Esmalte Dental/epidemiología , Prevalencia , Diente Molar/patología , Estudios Transversales , Emiratos Árabes Unidos/epidemiología , Incisivo/patología
11.
Hua Xi Kou Qiang Yi Xue Za Zhi ; 41(2): 232-236, 2023 Apr 01.
Artículo en Inglés, Chino | MEDLINE | ID: mdl-37056191

RESUMEN

Dens invaginatus is a rare developmental anomaly of the teeth that is caused by the infolding of enamel organs or the penetration of their proliferations into dental papillae before calcification has occurred. The presence of double dens invaginatus is extremely rare. This paper describes the use of cone beam computed tomography in the evaluation of a maxillary lateral incisor with double dens invaginatus and periapical periodontitis. The tooth was treated through microscopic root canal therapy. The tooth was free of clinical symptoms, and the periradicular lesion narrowed during the follow-up period of 1 year.


Asunto(s)
Dens in Dente , Periodontitis Periapical , Humanos , Cavidad Pulpar/diagnóstico por imagen , Cavidad Pulpar/anomalías , Dens in Dente/diagnóstico por imagen , Dens in Dente/terapia , Dens in Dente/patología , Incisivo/diagnóstico por imagen , Incisivo/anomalías , Incisivo/patología , Tratamiento del Conducto Radicular , Periodontitis Periapical/terapia , Periodontitis Periapical/patología
12.
Int J Numer Method Biomed Eng ; 39(6): e3702, 2023 06.
Artículo en Inglés | MEDLINE | ID: mdl-36987734

RESUMEN

BACKGROUND AND OBJECTIVE: The incisal biting was one of the most regular jaw activities. The direction of bite force on the incisor tip and the mandible position were relevant to the incisor angle as biting. This study was carried out to explore the influence on the temporomandibular joint (TMJ) caused by the incisor angle. METHODS: Twenty individuals belonging to three incisor subtypes of the buccal type were recruited. In addition, the 3D models including the maxillary, mandible and discs were established based on their cone-beam computed tomography and magnetic resonance imaging scannings. Then, the mandibular ligaments and the discal attachments were simulated in the finite element models to analyze the stress distributions of the TMJs under incisal biting. RESULTS: The TMJ stresses of subtype I showed normal range and distribution. The stresses of the intermediate temporal bone tended to increase in subtype II. The intermediate and posterior bands of the discs sustained greater tensile stresses in subtype III. CONCLUSIONS: Abnormal stress distributions are harmful to TMJs, so the incisor cusp was not suggested to incline to the palatal side too much.


Asunto(s)
Incisivo , Articulación Temporomandibular , Humanos , Incisivo/diagnóstico por imagen , Incisivo/patología , Articulación Temporomandibular/diagnóstico por imagen , Mandíbula/patología , Maxilar/diagnóstico por imagen , Maxilar/patología , Tomografía Computarizada de Haz Cónico/métodos , Análisis de Elementos Finitos
13.
Br Dent J ; 234(1): 27-33, 2023 01.
Artículo en Inglés | MEDLINE | ID: mdl-36639473

RESUMEN

A palatogingival groove of the maxillary lateral incisor is an anatomic malformation, which always predisposes the tooth to pulpal and periodontal disease. The diagnosis and treatment planning become complicated, with uncertain prognosis. Herein, we present an effective interdisciplinary management of a case of combined periodontal-endodontic lesions caused by palatogingival grooves. A series of treatment modalities were undertaken to preserve the two teeth, including root canal treatment, periodontal initial therapy, splinting the mobile teeth, occlusal adjustment, apical microsurgery, grinding and sealing grooves, and guided tissue regeneration. An apparent healing of the lesions was visible after 12 months. Therefore, interdisciplinary management of combined periodontal-endodontic lesions with palatogingival grooves of the maxillary lateral incisors is necessary for a favourable long-term outcome.


Asunto(s)
Incisivo , Enfermedades Periodontales , Humanos , Incisivo/cirugía , Incisivo/patología , Enfermedades Periodontales/complicaciones , Tratamiento del Conducto Radicular/efectos adversos , Necrosis de la Pulpa Dental/etiología , Necrosis de la Pulpa Dental/patología , Necrosis de la Pulpa Dental/terapia , Pulpa Dental , Raíz del Diente/cirugía
14.
Int J Paediatr Dent ; 33(3): 298-304, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-36511101

RESUMEN

BACKGROUND: Molar-incisor hypomineralisation (MIH) and hypomineralised second primary molars (HSPM) involve qualitative structural developmental anomalies of tooth enamel, affecting the first permanent molars (FPM) and the second primary molars, respectively. This developmental anomaly of systemic origin has important consequences for oral health. AIM: To determine the prevalence of MIH and HSPM in south-western France and explore the distribution of hypomineralised lesions on permanent and primary molars. DESIGN: Amongst 856 children (aged 7-9 years) in schools randomly selected by the Academy of Bordeaux (Ministry of Education), the FPM, permanent incisors and the second primary molars were examined by two examiners trained and calibrated for the diagnostic criteria for MIH and HSPM of the European Academy of Paediatric Dentistry. RESULTS: Molar-incisor hypomineralisation was present in 160 children (18.7%) and HSPM in 81 children (9.5%); 4.9% had both HSPM and MIH (42 of 856). Hypomineralised lesions were present in 1-4 FPM in affected individuals (mean = 2.4) and were distributed in an asymmetrical manner with widely varying severity at the tooth and individual level. A child with HSPM was more likely to have MIH than a child without HSPM (95% CI OR = 6.0 [3.7-9.7]; p < .0001). CONCLUSION: Molar-incisor hypomineralisation and HSPM have three main asymmetrical characteristics: tooth location, severity of hypomineralisation and number of teeth affected.


Asunto(s)
Hipoplasia del Esmalte Dental , Hipomineralización Molar , Niño , Humanos , Hipoplasia del Esmalte Dental/epidemiología , Prevalencia , Esmalte Dental/patología , Diente Molar/patología , Incisivo/patología
15.
Artículo en Inglés | WPRIM (Pacífico Occidental) | ID: wpr-981117

RESUMEN

Dens invaginatus is a rare developmental anomaly of the teeth that is caused by the infolding of enamel organs or the penetration of their proliferations into dental papillae before calcification has occurred. The presence of double dens invaginatus is extremely rare. This paper describes the use of cone beam computed tomography in the evaluation of a maxillary lateral incisor with double dens invaginatus and periapical periodontitis. The tooth was treated through microscopic root canal therapy. The tooth was free of clinical symptoms, and the periradicular lesion narrowed during the follow-up period of 1 year.


Asunto(s)
Humanos , Cavidad Pulpar/anomalías , Dens in Dente/patología , Incisivo/patología , Tratamiento del Conducto Radicular , Periodontitis Periapical/patología
16.
Clin Oral Investig ; 26(12): 6917-6923, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-36065023

RESUMEN

OBJECTIVES: Molar incisor hypomineralization (MIH) is a difficult-to-diagnose developmental disorder of the teeth, mainly in children and adolescents. Due to the young age of the patients, problems typically occur with the diagnosis of MIH. The aim of the present technical note was to investigate whether a successful application of a neural network for diagnosis of MIH and other different pathologies in dentistry is still feasible. MATERIALS AND METHODS: For this study, clinical pictures of four different pathologies were collected (n = 462). These pictures were categorized in caries (n = 118), MIH (n = 115), amelogenesis imperfecta (n = 112) and dental fluorosis (n = 117). The pictures were anonymized and a specialized dentist taking into account all clinical data did the diagnosis. Then, well-investigated picture classifier neural networks were selected. All of these were convolutional neural networks (ResNet34, ResNet50, AlexNet, VGG16 and DenseNet121). The neural networks were pre-trained and transfer learning was performed on the given datasets. RESULTS: For the vgg16 network, the precision is the lowest with 83.98% as for the dense121 it shows the highest values with 92.86%. Comparing the different pathologies between the investigated neural networks, there is no trend detectable. CONCLUSION: In the long term, an implementation of artificial intelligence for the detection of specific dental pathologies is conceivable and sensible. CLINICAL RELEVANCE: Finally, this application can be integrated in the area of training and teaching in order to teach dental students as well as general practitioners for MIH and similar dental pathologies.


Asunto(s)
Inteligencia Artificial , Hipoplasia del Esmalte Dental , Niño , Adolescente , Humanos , Diente Molar/patología , Incisivo/patología , Prevalencia , Hipoplasia del Esmalte Dental/diagnóstico , Hipoplasia del Esmalte Dental/patología
17.
J Indian Soc Pedod Prev Dent ; 40(2): 208-212, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35859415

RESUMEN

Odontomas are benign developmental tumors formed by the improper growth of completely differentiated epithelial and mesenchymal cells of odontogenic origin. The etiology of odontoma is unknown and it is detected during routine radiographic examination. The ideal management is early detection and surgical enucleation. The commonly associated clinical problems of odontomas are delayed exfoliation of primary teeth, delayed eruption or impaction of permanent teeth, displacement of teeth, root resorption, congenital missing, and widening of follicular space. Here, we describe a unique case of compound odontoma with a high number of denticles managed based on a definite decision support system over 8 years. An 8-year-old boy with 70 denticles in the left maxillary region underwent enucleation. On periodic follow-up, the associated impacted lateral incisor was extruded orthodontically.


Asunto(s)
Calcificaciones de la Pulpa Dental , Odontoma , Diente Impactado , Niño , Calcificaciones de la Pulpa Dental/complicaciones , Calcificaciones de la Pulpa Dental/patología , Estudios de Seguimiento , Humanos , Incisivo/diagnóstico por imagen , Incisivo/patología , Incisivo/cirugía , Masculino , Odontoma/diagnóstico por imagen , Odontoma/cirugía , Diente Impactado/diagnóstico por imagen , Diente Impactado/cirugía
18.
J Clin Pediatr Dent ; 46(3): 192-198, 2022 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-35830636

RESUMEN

OBJECTIVE: The objective of this study was to evaluate the remineralization effect of two different mineral containing agents on white/creamy and yellow/brown demarcated opacities in incisors in children with molar-incisor hypomineralization (MIH) by using laser fluoresence (LF). STUDY DESIGN: Fifty-three children (n=401 lesions) with MIH were randomly divided into three groups: (1)calcium glycerophosphate (CaGP), (2)casein phosphopeptide amorphous calcium fluoride phosphate (CPP-ACFP) and, (3)control (1450 ppm fluoride toothpaste). Remineralization was evaluated by means of LF, at baseline, after one and threemonths. Anova Test for Repeated Measurements in intra-group comparisons in evaluating the effectiveness of remineralization agents. One-way Variance Analysis (ANOVA) and Tukey-Kramer Multiple Comparison test were used in the comparisons between groups and, Student Newman Keuls Multpile Comparison Test was used to determine the differences between the measurement averages in case of p<0.05. RESULTS: There was a significant improvement in MIH-lesions over time in all groups (p<0.001), with no differences between groups. The highest percentage of change was observed in CPP-ACFP in lesions LF≤20 scores and the mean percentage of change LF>20 scores, the highest percentage changes in CaGP. There was no significant difference between the groups over the time for all the used outcome measures (p>0.05). CONCLUSION: The additional use of both mineral containing agents in MIH-affected teeth improved these hypomineralized lesions with mineral deposition. Even if both agents could be used in the hypomineralized teeth with demarcated opacities, future studies are recommended the long-term effect of these mineral containing agents with longer observation and a larger sample size.


Asunto(s)
Hipoplasia del Esmalte Dental , Incisivo , Niño , Hipoplasia del Esmalte Dental/tratamiento farmacológico , Fluoruros , Humanos , Incisivo/patología , Minerales , Diente Molar/patología , Remineralización Dental , Pastas de Dientes
19.
Gen Dent ; 70(4): 23-27, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35749242

RESUMEN

This study evaluated the bilateral symmetry of carious lesions in the primary and permanent teeth of children. The clinical records of patients aged 3 to 14 years who had carious lesions were evaluated. Dental caries was assessed using the modified decayed, missing, and filled teeth (dmft/DMFT) index, and the biofilm was assessed using the O'Leary plaque control record. The results were analyzed considering the presence or absence of caries and the stages of caries. The kappa coefficient between the left and right sides was calculated, and the chi-square test was applied (P < 0.05). The sample consisted of 206 children and 4802 teeth (2127 primary and 2675 permanent teeth). Fifty-one percent of the sample was female, and the mean age was 8.28 (SD 1.62) years. The mean number of dmft/DMFT was 4.45 (SD 3.61), and the mean O'Leary plaque index was 27.38%. The overall symmetry for the presence/absence of dental caries was 49.5% (n = 342), and the symmetry for the stage of caries was 43.5% (n = 301). The symmetry was similar in primary and permanent teeth for the presence/absence of caries (50.83% and 47.39%, respectively) and stages of caries (42.08% and 45.89%, respectively). Among the teeth that showed symmetry of carious lesions, there was an association between the hygiene condition and the presence of lesions in all maxillary and mandibular primary second molars and in the mandibular permanent right first molar (P < 0.05). A bilateral symmetric relationship of carious lesions was observed in the primary canines, primary first and second molars, permanent central and lateral incisors, first premolars, and permanent first molars in both the maxillary and mandibular arches. The results suggest that the presence of a carious lesion on a tooth surface can predict vulnerability to caries on the contralateral tooth, allowing the dentist to pursue targeted preventive action.


Asunto(s)
Caries Dental , Índice CPO , Caries Dental/complicaciones , Caries Dental/epidemiología , Caries Dental/patología , Susceptibilidad a Caries Dentarias , Dentición Permanente , Femenino , Humanos , Incisivo/patología , Diente Molar/patología , Prevalencia
20.
Clin Oral Investig ; 26(9): 5875-5883, 2022 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-35648236

RESUMEN

OBJECTIVES: This study aimed to assess the prevalence of dens invaginatus (DI) and its association with periapical lesions (PLs) in a Western Indian population by means of cone-beam computed tomography (CBCT). MATERIALS AND METHODS: CBCT volumes of 5201 subjects were evaluated. Associations among gender, tooth type, DI type (Oehler's classification), and presence of PL were investigated. PL was codified using Estrela's Cone Beam Computed Tomography Periapical Index (CBCTPAI). Chi-square tests and descriptive statistics were used at p = 0.05. RESULTS: Overall, 7048 CBCTs were assessed, containing 19,798 maxillary and mandibular anteriors, of which 77 maxillary teeth demonstrated DI (0.39% of all anteriors). Of all 5201 subjects, 57 had DI (1.1%). Bilateral DI was more common in females than in males (p = 0.046). DI type distribution was as follows: type I (22.1%), type II (61.03%), type IIIa (10.4%), and type IIIb (6.5%), which was significantly different (p < 0.001). Maxillary lateral incisors were the most associated with PL (p < 0.001). Type I was frequently associated with CBCTPAI scores 1 and 2 (absence of PL), whereas types II, IIIa, and IIIb were associated with CBCTPAI scores 3, 4, and 5 (presence of PL). CONCLUSIONS: A prevalence of 1.1% identifies DI as a common developmental tooth anomaly in a Western Indian subpopulation. The percentage of maxillary anteriors affected by DI and associated PLs should be considered before diagnosis and treatment planning. CLINICAL RELEVANCE: Knowledge about the prevalence of DI and its subtypes, and their association with/without periapical pathosis may aid clinicians in treatment planning and execution to improve patient outcomes.


Asunto(s)
Dens in Dente , Tomografía Computarizada de Haz Cónico/métodos , Dens in Dente/diagnóstico por imagen , Dens in Dente/epidemiología , Femenino , Humanos , Incisivo/patología , Masculino , Mandíbula , Prevalencia
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...