Type I Dentinal Dysplasia—Proposal of A New Classification System Combined with A Variant Case Presentation

Dentine dysplasia is an extremely rare autosomal dominant hereditary condition primarily characterized by defective dentine formation affecting both the deciduous and permanent dentitions. The aetiology of dentinal dysplasia remains imprecise to date, in spite of the numerous hypotheses put forward by various authors. Also, of late, new case reports of type I dentine dysplasias are emerging with clinical and radiographic findings which are unique and variant from the classical characteristic features of this anomaly, rendering it difficult to fit into the previously established classification systems. In this article, after a thorough review and understanding of the drawbacks of the previous classification systems and the cumulative findings from the published case reports in literature, we propose a new classification system for dentine dysplasia type I. We also present a case report which exhibited an absence of familial hereditary pattern, the absence of periradicular radiolucent lesions and osseous pathologies as well as atypical morphological defects of the molar roots which were diverse from the classical findings of the various sub types of dentine dysplasia type I reported to date. Early diagnosis and implementation of preventive and curative therapy is crucial for avoiding premature exfoliation of deciduous and permanent dentition and associated residual ridge resorption, thereby overcoming functional and aesthetic deficits. The new classification proposed in this article will help clinicians to diagnose and categorize the patients effectively, facilitating proper treatment and supportive care for all.

Basal Cell Ameloblastoma: Report of a Rare Case with Review of Literature

Ameloblastoma is a benign tumour of odontogenic epithelial origin with several histological variants comprising of follicular, plexiform, acanthomatous, desmoplastic, granular cell and basal cell types. Basal cell ameloblastoma (BCA) is the rarest histologic subtype in which the tumour is composed of numerous odontogenic epithelial islands supported by fibrous connective tissue stroma. It exhibits variations in the clinical course and histological features compared with the classic type of ameloblastoma. Till date, only 11 cases of BCA have been reported in the literature. Considering the rarity of the lesion, we report here a unique case of BCA occurring in the 8th decade with review of the literature of this rare variant.

Spontaneous Reversibility of an Iatrogenic Orthodontic Elastic Band-induced Localized Periodontitis Following Surgical Intervention – Case Report

Orthodontic elastic bands are an important iatrogenic etiologic factor in the causation of periodontal attachment apparatus breakdown. Appropriate diagnosis and a well constructed treatment plan tailor-made to suit the requirements of the particular patient is imperative for management of periodontal lesions induced by subgingival retention of rubber band. There are conflicting reports regarding the reattachment and regeneration of lost periodontal supporting tissues in such cases. The present case report highlights the spontaneous reversal and correction of periodontal destruction due to iatrogenic orthodontic elastic band displacement deep into the subgingival tissues.