While mandible proportions do not appear to constrain permanent molar initiation times, how adequate space is created in the corpus for these teeth in a timely way is not well understood. This question is important for explaining how primate tooth and jaw development and evolution are coordinated. Landmark and linear measurement data were used to characterize mandible shape, growth trajectory, ...

Submit Manuscript | http://medcraveonline.com commonly seen in permanent dentition. The incidence of supernumerary teeth is 1-3% and approximately 90-98% of supernumerary teeth occur in the maxilla. Males are affected twice as frequently as females [1]. Mesiodens is the most frequently occurring supernumerary tooth located palatal to the central incisors and conical morphology was found to be m...

Variations in the dental anatomy are found in all teeth. Understanding root canal morphology is one of the most important steps in successful root canal treatment. Thus, during the diagnosis and treatment phases of maxillary molars, a clinician must be aware that anatomical variations exist. The purpose of this study is to present a clinical case of a maxillary first molar having three mesiobuc...

Burnt osteological materials are one focus of interest in forensic, archaeological, and palaeontological studies. We document the effects of experimental, controlled heating on a sample of modem bones and teeth from sheep and goats. Four aspects of heating specimens to between 20 and 940°C were considered: color, microscopic morphology, crystalline structure and.shrinkage. Our results show that...

PURPOSE The aim of this study was to examine the radiographic features associated with impacted premaxillary supernumerary teeth, to determine the relationship between their characteristics and their effects on permanent incisors, and to investigate the types of orthodontic treatment that patients received after the extraction of impacted supernumerary teeth. MATERIALS AND METHODS The clinica...

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...

The aim of this study was to investigate tooth size and morphology in subjects with unilateral cleft palate (UCLP), bilateral cleft palate (BCLP), and isolated cleft palate (ICP) living in the north of England and to compare these with a control group. The measurements were undertaken retrospectively using dental study casts. To assess tooth size, the mesiodistal and buccolingual dimensions of ...

Forty two single-rooted teeth, prepared with the Mtwo system, were divided into three groups based on the filling method: control, "Single-cone" (n = 20) (Mtwo gutta-percha single-cone tapered according to the diameter, length and conicity of the preparation) and "Combined system" (n = 20) (BeeFill 2in1). The parameters studied were apical leakage, gutta-percha adjustment, number of voids, pres...

Dental morphology and patterns of tooth replacement in representatives of the clade Pliosauridae (Reptilia, Sauropterygia) are evaluated in detail. The jaws of one basal (Thalassiodracon hawkinsii) and two derived species (Pliosaurus carpenteri, Pliosaurus kevani) were visualized by μCT scans, and the ontogenetic patterns, or 'movement paths', of replacement teeth could be mapped. Other specime...

STATEMENT OF THE PROBLEM Some studies have reported the bond strength to be significantly lower in fluorotic enamels than the non-fluorosed. PURPOSE The purpose of this study was to evaluate the shear bond streongth of metallic brackets to non-fluorosed and fluorosed teeth after different enamel conditioning. MATERIALS AND METHOD A total of 176 freshly extracted human premolars (88 non-fluo...