Is caries a risk factor for dental trauma? A systematic review and meta-analysis.

BACKGROUND/AIM: The association between trauma and caries is still controversial in the literature. The aim of this study was to evaluate the possible association between caries and dental trauma through a systematic review with meta-analysis. DESIGN: A systematic literature search was performed in PubMed, Lilacs, BBO, Scopus, Web of Science, Cochrane Library, and Open Grey databases. The MeSH terms used were 'Tooth injuries', 'Tooth fractures', 'Tooth avulsion', 'Tooth movement'; 'Dental caries'; 'DMF index'; and 'Tooth demineralization'. MeSH synonyms, related terms, and free terms were included. The inclusion criteria comprised clinical investigations of subjects with and without caries that had suffered dental trauma. Quality assessment and bias control were carried out. Meta-analysis was performed using the comprehensive meta-analysis software (version 3.2). Heterogeneity was assessed using the I2 index, and the odds ratio was also calculated (P < 0.05). RESULTS: From 1290 abstracts, seven met the inclusion criteria. All studies had high methodological quality and five were included in the meta-analysis. The results demonstrated a positive association (P < 0.001) between dental trauma and dental caries in permanent teeth [OR: 1.490, 95%, CI: 1.209-1.835]. However, for children with primary teeth, the results showed a negative association (P = 0.006) between dental trauma and caries [OR: 0.706, 95%, CI: 0.550-0.906]. CONCLUSIONS: The results demonstrated positive and negative association between the presence of caries and dental trauma in permanent and primary teeth, respectively.

MANAGEMENT AND RADIOGRAPHIC FEATURES OF A RARE CONDITION: REGIONAL ODONTODYSPLASIA IN PRIMARY AND PERMANENT TEETH / Manejo e características radiográficas de condição rara: odontodisplasia regional em dentes decíduos e permanentes

Regional odontodysplasia is a rare and significant dental malformation. The present report describes an unexpected radiographic finding of rare tooth developmental anomaly and conservative management of primary teeth with in a child in mixed dentition. A 5-year-old healthy girl was referred to the Pediatric Dental Clinic due to pain and periapical radiograph exam showed teeth with abnormal large pulp chambers and a thin enamel and dentin of the primary incisors and canine and abnormal germs of the permanent successors teeth, with 'ghost-like' appearance. In addition, no root formation or only an insignificant amount was visible, characterizing regional odontodysplasia. At 10 years old, the treatment plan consisted of rehabilitation with a provisory partial resinous fixed prosthesis until implant surgery. The girl is still being followed up periodically.

A odontodisplasia regional é uma importante e rara malformação dental. O presente relato descreve um achado radiográfico inesperado de uma anomalia de desenvolvimento rara e seu manejo conservador em uma criança em dentição mista. Uma menina de 5 anos de idade, saudável, foi encaminhada à Clínica de Odontopediatria devido à dor. O exame radiográfico periapical mostrou os elementos dentários com câmaras pulpares amplas e uma fina camada de esmalte e dentina nos incisivos decíduos e anomalia nos germes dentários dos caninos permanentes sucessores, com aparência de 'dente-fantasma'. Além disso, não havia formação de raízes ou apenas uma quantidade insignificante era visível, caracterizando a odontodisplasia regional. Aos 10 anos, o plano de tratamento consistiu na reabilitação provisória por meio de uma prótese parcial fixa de resina até a cirurgia de implante ser possível. A criança, ainda, se encontra em acompanhamento periódico.