Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 111
Filtrar
Más filtros

Intervalo de año de publicación
1.
J Oral Maxillofac Surg ; 77(12): 2467-2474, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-31445036

RESUMEN

PURPOSE: This clinical study aimed to evaluate the long-term efficacy of reconstruction of the gingival interdental papilla via injection of hyaluronic acid gel. MATERIALS AND METHODS: Eight female participants with Class I or II gingival papilla loss in anterior sites were included in this study. The gingival biotype was evaluated previously. Hyaluronic acid gel was injected into the base of the deficient papilla, which was repeated twice at 3 and 6 weeks after the initial injection. The height of the gingival papilla and the area of papilla loss were examined on clinical photographs before treatment and 3, 6, and 12 months after treatment. The data were tested for a normal distribution and analyzed by the Wilcoxon signed rank test. P < .05 was considered significant. RESULTS: The height of the gingival papilla increased 0.311, 0.45, and 0.4 mm from baseline at 3, 6, and 12 months, respectively, after treatment (P < .05), whereas the area of the black triangle was reduced by 0.31, 0.41, and 0.36 mm2 at the same time points (P < .05). In addition, patients with a thick gingival biotype showed a better effect of treatment on the increase in the height of the gingival papilla and decrease in the area of the black triangle. CONCLUSIONS: Our study verified a remarkable effect of hyaluronic acid gel injection in restoring the deficient gingival papilla of the natural teeth, especially in patients with a thick gingival biotype.


Asunto(s)
Encía , Ácido Hialurónico , Femenino , Encía/anomalías , Humanos , Ácido Hialurónico/administración & dosificación , Inyecciones
2.
Gen Dent ; 66(1): 34-38, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29303760

RESUMEN

The frenum is a mucosal fold that attaches the lips or cheeks to the alveolar mucosa, gingiva, and underlying periosteum. Consequences of an abnormal frenal attachment include gingival recession, decreased vestibular depth, decreased range of lip movement, and involvement of interdental papilla, causing a diastema. Several methods to eliminate ectopic frenal attachments have been suggested, including frenectomy (elimination) and frenotomy (repositioning). This case report describes the use of a modified frenectomy technique in a 15-year-old girl with excess gingiva between the maxillary central incisors, which exhibited a 3-mm diastema. First, a semilunar primary incision was made in the palatal surface at a 5-mm distance from the tip of the papilla. Next, sulcular incisions were made around the tooth, and the papilla was transposed to the buccal via a papilla preservation flap. After complete elimination of frenal attachments in the bone, the flap was repositioned and sutured to the palatal surface. Afterward, the frenum was classically cut and sutured. Through this approach, the position of the frenum was changed apically without invading the papilla. At the 3-month follow-up, it was found that the modified technique (combination of papilla preservation flap and frenotomy) had minimized the surgical scar on the buccal surface, preserved the papilla, and yielded optimal esthetic results.


Asunto(s)
Frenillo Labial/cirugía , Adolescente , Femenino , Encía/anomalías , Encía/cirugía , Humanos
3.
J Craniofac Surg ; 27(1): e20-3, 2016 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-26703053

RESUMEN

A congenial syngnathia is very rare condition. It can be simple mucosal fusion (synechiae), or complete bony fusion (synostosis) between the maxilla or zygoma and the mandible. Fusion of the ascending ramus of mandible to maxilla and zygoma is less common than fusions of the alveolar ridges of the mandible to the maxilla. Bony syngnathia is either isolated or complex in form. There are 59 cases of congenital bony syngnathia reported in the literature: the first report was by Burket in 1936. There are 16 reported cases of zygomatico-maxillo-mandibular fusion. In the reported cases, women expressed the isolated form more commonly whereas men demonstrated a more complex pattern of disease. The authors present another patient of bony syngnathia involving bilateral fusion of the ascending ramus and body of the mandible with the maxillary complex in a young man. Early surgery was performed to release the bony and soft tissue fusion on the eighth day from the baby's birth. A second operation was performed for recurrence when the baby was 2.5 months old. A customized splint, an intense postoperative program of mouth exercises, and close follow-up aims to prevent further refusion.


Asunto(s)
Encía/anomalías , Mandíbula/anomalías , Maxilar/anomalías , Sinostosis/cirugía , Cigoma/anomalías , Proceso Alveolar/anomalías , Proceso Alveolar/cirugía , Terapia por Ejercicio/métodos , Estudios de Seguimiento , Encía/cirugía , Humanos , Recién Nacido , Masculino , Mandíbula/cirugía , Maxilar/cirugía , Osteotomía/métodos , Recurrencia , Reoperación , Férulas (Fijadores) , Cigoma/cirugía
4.
J Craniofac Surg ; 26(1): e68-70, 2015 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-25569423

RESUMEN

Complex zygomaticomandibular syngnathia is an extremely rare condition with an unknown etiology. The main goal of the surgery is to release the ankylosis, establish good functioning mandible, and prevent reankylosis, if possible. In our case, we offer a new solution to have an adequate oral opening and to prevent reankylosis. After the release of bony syngnathia, we placed a distractor between mandibular segment and maxillozygomatic complex. To our best knowledge, this is the only syngnathia case in the literature treated using distraction techniques. There is a major improvement in the patient's status. Distraction may broaden our horizons in this rare and difficult-to-treat deformity.


Asunto(s)
Mandíbula/anomalías , Maxilar/anomalías , Osteogénesis por Distracción/métodos , Sinostosis/cirugía , Fisura del Paladar/patología , Femenino , Estudios de Seguimiento , Encía/anomalías , Encía/cirugía , Humanos , Imagenología Tridimensional/métodos , Recién Nacido , Fijadores Internos , Mandíbula/cirugía , Cóndilo Mandibular/cirugía , Maxilar/cirugía , Microstomía/cirugía , Osteogénesis por Distracción/instrumentación , Tomografía Computarizada por Rayos X/métodos , Lengua/anomalías , Cigoma/anomalías , Cigoma/cirugía
5.
J Calif Dent Assoc ; 39(8): 573-83, 2011 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-21957822

RESUMEN

Mucogingival problems are developmental and acquired aberrations in the morphology, position, and/or the amount of gingiva surrounding teeth. According to an academic report by American Academy of Periodontology, mucogingival therapy should be advocated for gingival augmentation and to create adequate vestibular depth in areas with insufficient attached gingiva. This paper provides an overview on mucogingival surgical procedures from its inception to the current time.


Asunto(s)
Gingivoplastia/tendencias , Vestibuloplastia/tendencias , Encía/anomalías , Encía/trasplante , Enfermedades de las Encías/cirugía , Regeneración Tisular Guiada Periodontal , Humanos , Colgajos Quirúrgicos
6.
Refuat Hapeh Vehashinayim (1993) ; 28(1): 6-16, 77, 2011 Jan.
Artículo en Hebreo | MEDLINE | ID: mdl-21667561

RESUMEN

Soft tissue grafts are commonly used to restore and/or improve mucogingival deformities and conditions around teeth or on edentulous ridges. This include vertical and/or horizontal ridge deficiency, lack of gingiva/keratinized tissue, decreased vestibular depth and abnormal color. The present article describes and illustrates different procedures using autologous soft tissue grafts including masticatory mucosal free graft, masticatory mucosal pedicle graft, subepithelial free connective tissue graft, and subepithelial dermal graft. The functional and esthetic advantages and limitations of each graft for each condition are discussed.


Asunto(s)
Tejido Conectivo/trasplante , Encía/trasplante , Mucosa Bucal/trasplante , Encía/anomalías , Humanos , Mucosa Bucal/anomalías , Trasplante de Tejidos/métodos , Trasplante Autólogo/métodos
7.
Stomatologiia (Mosk) ; 90(5): 54-9, 2011.
Artículo en Ruso | MEDLINE | ID: mdl-22332383

RESUMEN

Defects near gingiva--a common pathology of dental hard tissue, which adversely affects the health of marginal periodontium. Subgingival tooth cavity is the retention factor for parodontopatogenic microorganisms. Chronic inflammation in the marginal periodontium in response to microbial invasion may lead to local periodontitis (periodontal pocket/gingival recession). Treatment of defects near gingiva should include the removal of the main etiological factors of disease: supraocclusion, bad habits, normalization of individual oral hygiene. Substitution therapy is the defect filling. The most suitable filling material on physicochemical and mechanical properties of composite recognized. Treatment of gingival defects is carried out after surgical correction of gingiva. Optimal conditions are achieved using the sealing hemostatic and retraction paste.


Asunto(s)
Caries Dental/etiología , Caries Dental/prevención & control , Encía/anomalías , Encía/cirugía , Gingivectomía , Humanos , Erosión de los Dientes/cirugía
8.
Am J Med Genet A ; 152A(1): 25-31, 2010 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-20034083

RESUMEN

Epidermal nevus syndrome is a clinically variable and genetically heterogeneous group of mosaic conditions characterized by the concurrence of extensive epidermal nevus with additional cutaneous and extracutaneous manifestations. This term groups together well-characterized clinical entities, as well as dozens of apparently unique associations, which need further delineation. We report on a 23-year-old woman presenting the previously undescribed combination of widespread eccrine proliferation, multiple facial and oral pox-like lesions, gingival synechiae, blepharophimosis, body asymmetry, and mental retardation. The patient has a healthy monozygotic twin. The eccrine proliferation is intermingled with areas of unaffected skin with a linear/segmental distribution on the limbs. The clinical presentation of such a complex phenotype fits well with the genetic mosaicism theory. The histologic findings, consisting of proliferation of immature to well-formed eccrine duct-like structures located in the deep dermis and interspersed with an abundant fibrous stroma constituted of horizontally oriented collagen fibers, seem a possible hallmark of this condition.


Asunto(s)
Blefarofimosis/patología , Cicatriz/congénito , Glándulas Ecrinas/patología , Encía/anomalías , Nevo , Adulto , Femenino , Humanos , Síndrome , Tomografía Computarizada por Rayos X
9.
Medicine (Baltimore) ; 99(26): e21011, 2020 Jun 26.
Artículo en Inglés | MEDLINE | ID: mdl-32590818

RESUMEN

RATIONALE: Acute promyelocytic leukemia (APL) is an uncommon subtype of acute myeloid leukemia (AML). M3v phenotype is a less common presentation of APL and these patients usually present with leukocytosis and abnormal promyelocytes that are characterized by sparse granulation and are less likely to have faggot cells with multiple Auer rods. Distinguishing M3v phenotype from acute febrile illness can be challenging as the diagnosis relies on examination of peripheral smear. PATIENT CONCERNS: Fifty-seven-year-old female who presented after recent trip to Dominican Republic for high grade fever and gum bleeding. She was exposed to patients with Dengue fever during her stay. At presentation, patient had leukocytosis, thrombocytopenia, and urinalysis showing bacteria and white cell. She was started on treatment for urinary tract infection. Patient remained febrile and thrombocytopenia worsened. On day 2, flow cytometry of the peripheral smear showed 43% medium sized blasts. Fluorescence in situ hybridization was positive for promyelocytic leukemia/retinoic acid receptor alpha. DIAGNOSES: The patient was diagnosed with APL. INTERVENTIONS: Patient was started on treatment with all-trans retinoic acid and arsenic trioxide along with supportive care OUTCOMES:: Patient had a favorable clinical response and her symptoms subsided. LESSONS: Flow cytometry of the peripheral smear is key to diagnosis of suspected APL. One must maintain high suspicion for this life-threatening condition as early diagnosis saves lives.


Asunto(s)
Dengue/fisiopatología , Diagnóstico Diferencial , Leucemia Promielocítica Aguda/diagnóstico , Femenino , Fiebre/etiología , Encía/anomalías , Humanos , Leucemia Promielocítica Aguda/fisiopatología , Persona de Mediana Edad , Viaje
10.
J Endod ; 45(12): 1543-1549, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-31676043

RESUMEN

The palatogingival groove is a developmental anomaly that typically starts near the cingulum of the maxillary incisors and extends along the roots at varying lengths and depths. Severe grooves that extend to the root apex often lead to complex combined periodontal-endodontic lesions. There are various therapeutic options available for these cases; however, the prognosis is unfavorable. Here, we report the successful surgical treatment of 3 cases of maxillary lateral incisors with severe palatogingival grooves using intentional replantation with a 2-segment restoration method. The teeth were gently extracted, resulting in minimal damage to the periodontal ligament. Under a dental operating microscope, 3 mm of the root end was resected. The palatogingival groove was removed, and root-end preparation was performed with a #700 fissure bur. The groove cavity was connected with root-end cavity to form a class II cavity. The cavity was then filled using a 2-segment restoration method (ie, dividing the cavity into 2 parts by the cementoenamel junction, the coronal portion was filled with a flowable composite while the radicular portion, including the root-end cavity, was filled with bioceramics). The tooth was then replanted into its alveolar bone and splinted with a flexible splint for 7 days. The sinus tract was closed at the 1-week postoperative visit. During subsequent recalls, the teeth showed almost complete periapical healing. In summary, intentional replantation with a 2-segment restoration method is a viable treatment modality for single-rooted teeth with a severe palatogingival groove that extends to the root apex.


Asunto(s)
Encía , Incisivo , Hueso Paladar , Reimplante Dental , Encía/anomalías , Humanos , Hueso Paladar/anomalías , Tratamiento del Conducto Radicular , Raíz del Diente
11.
J Dent Child (Chic) ; 86(1): 61-63, 2019 Jan 15.
Artículo en Inglés | MEDLINE | ID: mdl-30992103

RESUMEN

Pachyonychia congenita (PC) is a rare autosomal dominant condition caused by heterozygous mutation in one of five keratin genes. The purpose of this paper is to report a five-day-old infant with PC whose initial presentation revealed multiple malformed natal teeth and gingival lesions on the alveolar crest. Further investiga- tions led to genetic molecular testing of the child and his parents, which revealed a de novo and novel missense variant of KRT17 (c. 307C>T, p. Arg103Cys), resulting in a non-conservative amino-acid substitution and a diagnosis of PC. This case high- lights the need for multidisciplinary care and the relevance of molecular investigations for patients with multiple natal teeth. (J Dent Child 2019;86(1):61-3)
Received September 26, 2018; Last Revision November 19, 2018; Accepted November 19, 2018.


Asunto(s)
Encía , Queratina-17 , Paquioniquia Congénita , Anomalías Dentarias , Encía/anomalías , Humanos , Recién Nacido , Queratina-17/genética , Masculino , Mutación , Paquioniquia Congénita/complicaciones , Paquioniquia Congénita/genética
12.
J Periodontol ; 79(5): 961-6, 2008 May.
Artículo en Inglés | MEDLINE | ID: mdl-18454678

RESUMEN

BACKGROUND: The association of aggressive periodontitis with Kindler syndrome was based on a single case in 1996 and later confirmed with a larger population. Since then, significant research has greatly increased our understanding of the molecular pathology of this disorder. We review recent advances in the molecular mechanisms of the syndrome and present a maintenance case report of a patient who has been followed in our clinic. METHODS: A female patient who was diagnosed with Kindler syndrome and aggressive periodontitis at the age of 16 years has been followed and treated in our clinic for 12 years. Her main treatment has been maintenance therapy following her initial treatment and restorative work previously documented. Gingival biopsies obtained during the recent extraction of hopeless maxillary molars were used for histologic assessment of gingival tissue attachment apparatus and to isolate gingival fibroblasts. Reverse transcription-polymerase chain reaction (RT-PCR) was performed using these cells to confirm the lack of expression of kindlin-1. RESULTS: RT-PCR showed the total loss of kindlin-1 mRNA in cultured gingival fibroblasts, supporting the clinical diagnosis of Kindler syndrome. Tissue biopsies revealed atypical pocket epithelium. Maintenance therapy has been moderately successful. Teeth that were recently lost had a poor prognosis at the initial assessment. The patient's gingiva and oral mucosa continue to be fragile with episodes of sloughing and inflammation. CONCLUSIONS: Periodontitis in Kindler syndrome responds to maintenance therapy, but the gingiva and oral mucosa continue to display an abnormal appearance with white patches. Histologic findings suggest that the junctional epithelium in Kindler syndrome may be abnormal and could explain why these patients have periodontal disease. Attachment loss progressed around teeth with an initial guarded or poor prognosis. Teeth that started with a good or fair prognosis continue to have a fair prognosis. Limited dental implant treatment is being considered.


Asunto(s)
Periodontitis Agresiva/complicaciones , Encía/anomalías , Enfermedades de las Encías/complicaciones , Síndrome Rothmund-Thomson/complicaciones , Enfermedades Cutáneas Vesiculoampollosas/complicaciones , Adolescente , Adulto , Periodontitis Agresiva/prevención & control , Índice CPO , Raspado Dental , Femenino , Estudios de Seguimiento , Enfermedades de las Encías/prevención & control , Humanos , Índice Periodontal , Trastornos por Fotosensibilidad/complicaciones , Trastornos por Fotosensibilidad/genética , Síndrome Rothmund-Thomson/genética , Enfermedades Cutáneas Genéticas/complicaciones , Enfermedades Cutáneas Vesiculoampollosas/genética , Síndrome , Pérdida de Diente/complicaciones , Pérdida de Diente/prevención & control
13.
Niger J Clin Pract ; 11(1): 77-80, 2008 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-18689146

RESUMEN

A rare congenital anomaly of maxillomandibular fusion with pectus excavatum and craniosynostosis in a neonate is presented. The child was kept alive by nasogastric tube feeding. A modification of classification of syngnathia is proposed. The aetiopathogenesis and difficulty in management in our environment are discussed.


Asunto(s)
Anomalías Múltiples/diagnóstico , Craneosinostosis/diagnóstico , Sinostosis/diagnóstico , Diagnóstico Diferencial , Resultado Fatal , Femenino , Encía/anomalías , Humanos , Recién Nacido , Mandíbula/anomalías , Maxilar/anomalías , Micrognatismo/patología , Cigoma/anomalías
14.
Zhonghua Kou Qiang Yi Xue Za Zhi ; 53(5): 351-354, 2018 May 09.
Artículo en Zh | MEDLINE | ID: mdl-29972995

RESUMEN

Gingival Stillman's cleft is a mucogingival triangular- shaped defect which influence on health and appearance of gingiva. Due to a lack of clinical reports, five cases of gingival Stillman's cleft were recruited in the present study. The treatment methods were selected according to the etiological factors of the defect in each patient. Satisfactory treatment responses were achieved in all cases during a 6 to 20 month follow up after the treatments. In this study, we summarized the treatment strategies in various types of gingival Stillman's cleft, so as to provide the reference for clinicians.


Asunto(s)
Árboles de Decisión , Encía/anomalías , Recesión Gingival/terapia , Adulto , Estudios de Seguimiento , Humanos , Resultado del Tratamiento
15.
Braz. J. Pharm. Sci. (Online) ; 59: e22452, 2023. tab, graf
Artículo en Inglés | LILACS | ID: biblio-1439503

RESUMEN

Abstract Candidiasis is one of the most common fungal infections of oral cavity in humans, causing great oral discomfort, pain and aversion to food. To develop more effective antifungal systems for the treatment of oral candidiasis, an oral mucoadhesive wafer containing sertaconazole solid dispersion (STZ-SD) was developed in this study. Dispersion of STZ in Soluplus® as a solubility enhancement excipient was done by melting, solvent evaporation and freeze drying method at various STZ to Soluplus® ratios. The optimized STZ-SD was then incorporated in the sodium carboxymethyl cellulose (SCMC) gel, xanthan gum gel, or their combination to prepare the lyophilized wafers. The swelling capacity, porosity, and mechanical, release and mucoadhesive properties of the wafers, together with their antifungal activity, were then evaluated. The melting method sample with the ratio of 8:1 showed the best results in terms of saturation solubility and dissolution rate. The STZ-SD-composite wafer exhibited higher hardness and mucoadhesion, as compared to those made of the SCMC polymer. The STZ-SD-wafer also exhibited a greater antifungal effect when compared to the STZ-wafer. The present study, thus, suggested that the STZ-SD-wafer could serve as a novel effective delivery system for oral candidiasis treatment.


Asunto(s)
Boca/patología , Candidiasis Bucal/tratamiento farmacológico , Alimentos/clasificación , Liofilización/clasificación , Encía/anomalías
16.
J Coll Physicians Surg Pak ; 28(2): 157-159, 2018 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-29394978

RESUMEN

This case report presents two cases of rare congenital malformation, i.e syngnathia. First case is of 2-day infant with bilateral fusion of maxilla and mandible, leaving a small anterior portion. After consultation with other concerned specialties, early intervention was planned and fusion was released to facilitate feeding. The infant suffered from frequent respiratory tract infections and subsequently died at the age of ten months. The second case is of 8-month baby girl with unilateral congenital maxillomandibular bony fusion without any other anomaly. She underwent general anesthesia for thorough examination and release of soft tissue union. Second surgery was performed after few months for removal of bony fusion. Good mouth opening was seen on 1 month follow-up.


Asunto(s)
Encía/anomalías , Anomalías Maxilomandibulares/cirugía , Mandíbula/anomalías , Maxilar/anomalías , Anomalías de la Boca/cirugía , Femenino , Encía/cirugía , Humanos , Recién Nacido , Mandíbula/cirugía , Maxilar/cirugía , Resultado del Tratamiento
17.
Arch Oral Biol ; 52(11): 1032-6, 2007 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-17643385

RESUMEN

OBJECTIVE: Labial cervical vertical groove (LCVG), a dental anomaly found at the cervical region of upper permanent incisors, can be of esthetic, periodontal and prosthetic concern. The aim of this study was to define the prevalence and characteristics of LCVG. DESIGN: Of the 1250 examined subjects, 66 exhibited an LCVG. This group (age 19.7+/-11.4 years) was then compared with a matched No-LCVG (control) group of 49 subjects (age 17.9+/-5.7 years). Six LCVG characteristics were examined: distribution, severity and location of LCVG in central (I(1)) and lateral (I(2)) permanent maxillary incisors, Angle's classification, gender and presence of LCVG in siblings. RESULTS: Total LCVG prevalence was 5.3% (single 3.76%; multiple 1.53%), found predominantly in I(1) (93.9%) compared with I(2) (p=0.001). The anomaly presented mostly as a single configuration (71.21%); double configuration was predominantly homological bilateral, i.e., I(1)+I(1), or I(2)+I(2) (88%). LCVG in I(2) was mainly associated with multi-configuration (75%). The severe form occurred only in I(1). A mid-crown LCVG allocation was distinctive in I(1) (62.2%, p=0.001) and mesial-crown in I(2) (66.7%, p=0.038). LCVG was found mostly in males (p=0.045). In the LCVG group 16.7% were siblings. CONCLUSIONS: LCVG primarily involved I(1) in single configuration as the target assaulted tooth and secondarily I(2) mostly as a multi-configuration. The genetic impact on LCVG formation was primarily supported by the high prevalence in siblings and secondarily by the favourable occurrence in males, exclusive pattern of allocation within the crown and high occurrence of bilateral double-configuration LCVG.


Asunto(s)
Incisivo/anomalías , Adolescente , Adulto , Distribución de Chi-Cuadrado , Niño , Dentición Permanente , Femenino , Encía/anomalías , Humanos , Masculino , Prevalencia , Carácter Cuantitativo Heredable , Distribución por Sexo
18.
Chemosphere ; 67(9): S350-4, 2007 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-17250867

RESUMEN

The effects of long-term exposure to polychlorinated biphenyls (PCBs) on developmental dental defects of deciduous and permanent teeth in children in eastern Slovakia, where PCBs from a chemical plant manufacturing Delors contaminated the surrounding district were evaluated. Four hundred and thirtytwo children, lifelong residents, aged 8-9 years were examined. Children's caries susceptibility and gingival health was assessed by standard dental indices, and developmental enamel defects by the FDI index. Data from the PCBRISK project data set and questionnaires completed by the parents provided information on exposure and various confounding factors. The proportion of teeth with different types and extensions of developmental enamel defects correlated with serum PCB concentration. The proportion of deciduous teeth affected with enamel defects was significantly higher in higher exposed children (chi(2)=8.35; p=0.03) according to their serum PCB concentration (group 0: <200; group 1: 200-600; group 2: >600 ng PCBs g(-1) serum lipids). The proportion of permanent teeth affected with any enamel defect was significantly higher in higher exposed children (chi2=7.237; p=0.027). Furthermore, the extent of the enamel defects was also greater (chi2=10.714; p=0.005). In multivariate linear regression analysis PCB exposure was significantly related to developmental enamel defects of permanent teeth only. No associations between PCB exposure and caries susceptibility, gingival health or number of teeth were observed. This study demonstrated a dose-response relationship between PCB exposure and developmental enamel defects of permanent teeth in children, the evidence for deciduous teeth was not conclusive.


Asunto(s)
Caries Dental/inducido químicamente , Esmalte Dental/efectos de los fármacos , Dentición Permanente , Contaminantes Ambientales/toxicidad , Encía/efectos de los fármacos , Bifenilos Policlorados/toxicidad , Niño , Caries Dental/epidemiología , Esmalte Dental/anomalías , Contaminantes Ambientales/sangre , Encía/anomalías , Humanos , Análisis Multivariante , Bifenilos Policlorados/sangre , Análisis de Regresión , Medición de Riesgo , Eslovaquia , Solubilidad , Factores de Tiempo , Diente Primario
19.
Sultan Qaboos Univ Med J ; 17(4): e472-e476, 2017 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-29372093

RESUMEN

Leiomyosarcoma (LMS) is a rare mesenchymal malignancy, of which 3-10% of cases occur in the head and neck region. We report a 22-year-old woman who was referred to the University Hospital of Siena, Italy, in 2016 with an ostensibly benign asymptomatic lump on the mandibular gingiva. The lesion grew rapidly, causing otalgia in the right ear. An excisional biopsy was performed and primary LMS was diagnosed histologically. Subsequently, the patient underwent radical re-excision of the perilesional mucosa, a partial bone resection and the extraction of four teeth. No recurrences or metastases were detectable at a 20-month follow-up. This report discusses the differential diagnosis of LMS with regards to other benign and malignant lesions and reviews the recent literature on primary and secondary oral LMS. Due to its innocuous clinical features-including its asymptomatic nature and presentation at a young age-this aggressive malignancy can go undetected; therefore, an early histopathological diagnosis is crucial.


Asunto(s)
Neoplasias Gingivales/cirugía , Leiomiosarcoma/cirugía , Femenino , Encía/anomalías , Encía/cirugía , Neoplasias Gingivales/diagnóstico , Humanos , Italia , Leiomiosarcoma/diagnóstico , Tomografía Computarizada por Rayos X/métodos , Adulto Joven
20.
Braz. J. Pharm. Sci. (Online) ; 58: e18655, 2022. tab, graf
Artículo en Inglés | LILACS | ID: biblio-1364423

RESUMEN

Abstract Periodontitis is an oral disease associated with inflammation and pain with swollen and bleeding gums. In the present study, dental pastes containing NSAIDs, namely, diclofenac sodium and nimesulide (1 % w/w) were prepared to treat periodontitis. Dental pastes of diclofenac sodium and nimesulide (1 % w/w) were prepared with/without mucoadhesive hydrocolloid polymers such as sodium carboxy methyl cellulose (NaCMC), hydroxyl ethyl cellulose (HEC) and methyl cellulose (MC) by conventional trituration method. The pH, drug content, viscosity, tube spreadability and tube extrudability of these prepared dental pastes were measured. These dental pastes of diclofenac sodium and nimesulide (1 % w/w) were characterized by FTIR analyses for drug-excipient compatibility. The in vitro drug releases from these dental pastes in 6.4 pH phosphate buffer solution displayed sustained release over longer period and the drug release rate was found to be decreased when the concentration of mucoadhesive polymer was increased. These dental pastes displayed good adhesion to the oral mucosa revealing more retention time in mouth when tested for ex vivo mucoadhesion using bovine cheek pouch. The stability study results reveal that the DC3 and NC3 dental paste formulations were found stable enough over a longer period in different storage conditions. The present study revealed that the prepared mucoadhesive dental pastes of diclofenac sodium and nimesulide (1 % w/w) had good adhesion with the oral mucosa to maintain consistent release of drugs over prolonged time.


Asunto(s)
Pastas de Dientes/análisis , Preparaciones Farmacéuticas , Antiinflamatorios no Esteroideos/análisis , Boca , Mucosa Bucal/anomalías , Periodontitis , Técnicas In Vitro/métodos , Diclofenaco/efectos adversos , Enfermedad/clasificación , Espectroscopía Infrarroja por Transformada de Fourier , Liberación de Fármacos , Encía/anomalías , Inflamación/complicaciones
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA