Introduction: Bolton ratio is considered as seventh key of normal occlusion. Many orthodontic patients have to undergo premolar extractions as a part of treatment. Aims and objectives: The present study was taken up to investigate the effect of premolar extractions on Bolton’s overall ratios in a sample of north Indian population. Materials and methods: Mesiodistal tooth widths were measured on...

PURPOSE This prospective study followed 61 patients who were partially dentulous and considered to have insufficient bone volume for routine implant treatment and consequently underwent sinus inlay bone grafting. PATIENTS AND METHODS The patients were treated with maxillary sinus floor augmentation with particulated autogenous bone from the mandibular ramus/corpus. After a healing period, den...

Optical imaging based on intrinsic signals is a powerful tool for in vivo studying functional organization of various cortices. Here, the functional architecture of orientation-sensitive neurons in higher order extrastriate cortical area 21a was investigated in cats using optical imaging combined with electrophysiological methods. It is found that neurons in area 21 with similar preferred orien...

The mandibular second premolar is usually described as a single rooted tooth with a single root canal. However, two root canals may be found but the occurrence of two roots is extremely rare. The reported studies have shown 0.3% prevalence of two roots in mandibular second premolars. This report describes an unusual case of a thirteen year old female patient with bilateral two rooted mandibular...

Institut für Experimentalphysik und Zentrum für Quantenphysik, Universität Innsbruck, Technikerstraße 25, A–6020 Innsbruck, Austria Institut für Theoretische Physik und Zentrum für Quantenphysik, Universität Innsbruck, Technikerstraße 25, A–6020 Innsbruck, Austria Institut für Quantenoptik und Quanteninformation der Österreichischen Akademie der Wissenschaften, Technikerstraße 21a, A–6020 Innsb...

A case is presented which demonstrates the incomplete transposition of a posterior tooth. In this case, the path of eruption of an abnormally angulated developing mandibular second premolar was diverted distally following the extraction of the adjacent first

Gemination aka twinning and fusion, are rare occurrences in posterior mandibular teeth, often requiring endodontic and surgical treatment for functional, orthodontic or cosmetic reasons. The diagnosis and design of a precise treatment plan in cases involving double teeth are in most cases challenging. The purpose of this case report is to describe a successful multidisciplinary treatment protoc...

OBJECTIVE The aim of this study was to assess the prevalence and pattern of congenital missing teeth in the permanent dentition (excluding wisdom teeth), among Turkish children in a 4-year period (2009-2012). METHODS The study group comprised 1658 children (873 girls, 785 boys). The children were examined in Department of Pediatric Dentistry, Dental School of Marmara University. A chi square ...

Understanding the morphological anatomy of the root and root canal systems of the teeth increases the success rate of endodontic therapy. Advanced diagnostic imaging techniques like cone beam computed tomography (CBCT) are an essential aid in understanding the anatomy of teeth especially in mandibular premolars. Most commonly mandibular first and second premolars have a single root and a single...