The aim of this study was to quantify the specific distal displacement of the gingival zenith in the maxillary anterior dentition. Bilateral measurements, taken with a digital caliper in maxillary stone casts were recorded in six maxillary anterior teeth to evaluate distal displacement of the gingival zenith in relation to the long axis of the crowns. The gingival zenith was distally displaced ...

OBJECTIVE In orthodontic treatment, intrusion movement of maxillary incisors is often necessary. Therefore, the objective of this investigation is to evaluate the initial distribution patterns and magnitude of compressive stress in the periodontal ligament (PDL) in a simulation of orthodontic intrusion of maxillary incisors, considering the points of force application. METHODS Anatomic 3D mod...

INTRODUCTION This article's purpose is to report a case where maxillary lateral incisors and mandibular central incisors are extracted and a canine substitution was performed as the best therapeutic option in order to obtain symmetry in a malocclusion with an upper lateral incisor with poor prognostic, solve moderate crowding, get enough space for the permanent dentition, and provide stability ...

the purpose of this report is to present a rare case of a fused mandibular lateral incisor with supernumerary tooth with a follow-up for 18-months. a 35-year-old female patient was referred to our clinic with an extraoral sinus tract in the chin. the intraoral diagnosis revealed the fusion of her mandibular lateral incisors. vitality pulp tests were negative for mandibular right central and lat...

AIM To evaluate the presence of root resorption in the lateral incisor after active orthodontic treatment in the early mixed dentition. METHODS Twenty-six children treated at the Children's Clinic of the Schulich School of Medicine and Dentistry at the University of Western Ontario were examined radiographically for lateral incisors root resorption before and after early active treatment to a...

The purpose of this study was to investigate whether treatment with the Tip-Edge appliance resulted in more apical root resorption (ARR) of the central and lateral incisors during the torquing (third stage) than the non-torquing phases (first two stages) of orthodontic treatment. The three stages of this orthodontic technique make it possible to examine the amount of root shortening during torq...

Malformed central incisors with poor prognosis could be candidates for extraction especially in crowded dental arches. This case report refers to a 12-year-old boy who suffered from malformed upper central incisors associated with severe attrition. Upper lateral incisors were positioned palatally and canines were rotated and positioned in the high buccal area. The patient had class II malocclus...

Objectives This study is aimed to introduce an unusual case of a female with two talon teeth on both maxillary lateral incisors. Case A 38-year-old female was referred to oral medicine department, Qom university of medical sciences for routin examinations. Bilateral maxillary talon cusp was observed on maxillary lateral incisors. Future evaluation revealed impaction of maxillary left canine an...

eral incisors. EW springs were then bonded to anchor-wire segments as described above (Fig. 3). Three months later, the upper lateral incisors had been significantly intruded (Fig. 4). After the intrusion auxiliaries were removed, a bracket was bonded to the left lateral incisor for incorporation into the main archwire; an .008" ligature wire was bonded to the surface of the right lateral incis...

Dens invaginatus is a developmental anomaly that results in an enamel-lined cavity intruding into the crown or root before the mineralization phase. It typically affects permanent maxillary lateral incisors, central incisors, and premolars. This paper describes the root canal treatment of Oehlers' type II dens invaginatus in maxillary left lateral incisors. A 16-year-old boy presented to the Fa...