An inbred line (OK1) of Drosophila melanogaster , recently derived from a natural population in Oklahoma, has been found by Woodruff and Thompson to exhibit a low frequency of spontaneous male recombination when outcrossed to marker stocks. There is also a reciprocal-cross effect, such that recombination is found only if OK1 males are used in the initial cross. When OK1 females are used, howeve...

Background and objective: A deep bite malocclusion may be due to skeletal dental factors. The analysis of the etiological factors have an influence on treatment plan. aim this study was exploration most common that contribute in Yemeni individuals, as well correlations between them. Material methods: a cross-sectional prospective conducted evaluate 136 individuals with bites using casts lateral...

Background: The purpose of this study was to investigate whether there is a role the low gonial angle on marginal bone resorption around implants placed in posterior mandible. Methods: This retrospective study, including 20 patients with 46 followed 36 months were inserted toothless area. Patients without systemic disease included study. measured panoramic x-ray; more than 1250were classified a...

OBJECTIVES Accurate localization of the inferior alveolar canal (IAC) is extremely important in some dental treatments. Anatomical variation of the canal means that it can be difficult to locate. The purpose of this study was to assess the relationship of the gonial angle (GA) size and IAC position using cone beam computed tomography (CBCT). MATERIALS AND METHODS In this in vitro study, 61 dr...

INTRODUCTION This study evaluated posteroanterior cephalograms before and after treatment and long term follow-up of Class II division 1 patients treated with bionator. OBJECTIVE The objective was to demonstrate the transverse growth of maxilla and mandible during and after bionator therapy. METHODS Measurement of transverse dimensions between posterior maxillary and mandibular implants, as...

PURPOSE This study was performed to assess the compatibility of cone beam computed tomography (CBCT) synthesized cephalograms with conventional cephalograms, and to find a method for obtaining normative values for three-dimensional (3D) assessments. MATERIALS AND METHODS The sample group consisted of 10 adults with normal occlusion and well-balanced faces. They were imaged using conventional ...

The aim of our study was to identify the most important anatomical landmarks in the cephalometric evaluation of Class III patients and to clarify the morphological characteristics of these cases. A group of 10 Class III orthodontic patients was evaluated in this study. The control group consisted of 10 patients with average occlusion and skeletal characteristics. Digital lateral cephalometric X...

Orientation disruptor (ord), a meiotic mutant that is recombination defective in females and disjunction defective in males and females, has been analyzed using serial section electron and light microscopy. From analysis of primary spermatocytes we have confirmed that ord males are defective in some aspect of the mechanism(s) that holds sister chromatids together during meiosis. In addition, we...