Transposition may affect both sexes equally and, although it may occur in the maxilla or in the mandible, the frequency of maxillary permanent canine involvement is the greatest [3]. In the maxilla the canine is transposed most frequently with the first premolar (Figure 1a,b), less often with the lateral incisor followed rarely by central incisor or second premolar In the mandible transposition...

OBJECTIVES To identify the major causes and types of dental luxation and avulsion injuries, and their associated factors in primary school children in Hong Kong. DESIGN Case series. SETTING School dental clinic, New Territories, Hong Kong. PATIENTS The dental records of children with a history of dental luxation and/or avulsion injury between November 2005 and October 2012 were reviewed. ...

The term talon cusp refers to a rare developmental dental anomaly characterized by a cusp-like structure projecting from the cingulum area or cement-enamel junction. This condition can occur in the maxillary and mandibular arches of the primary and permanent dentitions. The purpose of this paper is to report on the presence of talon cusps in the primary dentition of two southern Chinese sibling...

Purpose: This study was carried out to determine the relationship between the width of maxillary central incisor and interpupillary distance. Materials and Methods: A total of 100 subjects-50 male and 50 female individuals in the age group 18-26 years were selected based on predetermined selection criteria. Standardized facial frontal photographs of all the subjects were taken using a SLR camer...

This teenage patient presents with pronounced esthetic and functional dental concerns. An anterior frontal view of the patient’s dentition shows virtually total facial blockage of the maxillary right central incisor creating mesial contact of the right lateral incisor with the left central incisor immediately lingual to the blocked out right central incisor. A similar severe misalignment takes ...

OBJECTIVE When utilizing a single implant-supported crown to replace a central incisor, understanding the final shape of the implant restoration is an important factor to help achieve a successful esthetic outcome. In today's dentistry, tooth shape is a critical factor when dental implant prostheses are considered in the esthetic zone. The major esthetic goal for this type of restoration is to ...

The primary objective of this in vitro study was to compare the absolute marginal discrepancy (AMD) of CAD/CAM produced Procera AllCeram crown copings, fabricated on die stone master models of two different tooth groups, incisor and molar. Two maxillary central incisors and two first molars typodont teeth were prepared with 0.8 mm of circumferential chamfer, duplicated 9 times to obtain 36 die ...

OBJECTIVE To evaluate the degree of perception of laypersons, dental professionals, and dental students regarding dental esthetics in cases with mandibular central incisor extraction. MATERIALS AND METHODS Using a smile photograph of a person with normal occlusion and all teeth, modifications were made to reflect the extraction of a mandibular incisor of various compositions and sizes. For th...