Multiple Abnormal Unerupted Mandibular Permanent Molar Teeth: A Case Report

Abnormal multiply unerupted permanent molars have long received the attention of anatomists and maxillofacial surgeons besides the other developmental teeth anomalies. This paper presents a clinical case of a 23-year-old male patient who was admitted to the department of maxillofacial surgery in faculty of dentistry in Gulhane Medical School with a six month history of pain at the rest position and during chewing and also tender on his right corpus of mandible. The impaction which resulted in eruption failure and anatomical dislocation of the normally developed three mandibular molar teeth was found. It was defined facial asymmetry on his right side in extra-oral examination. Diagnosis of multiple abnormal unerupted mandibular molar teeth was confirmed by panoramic and 3D CT images. The unerupted inverted tooth was the third molar which is positioned to basis of the mandible on the right side. In the other side, the first molar was placed on basis of mandible and located distoangulary. The second molar was located on middle of the left corpus mandible vertically. And also, the third molar was erupted mesioangulary. The arch-length was evaluated by the oral surgeon. Mesiodistal distance between the teeth was to be sufficient. Causes of impacted permanent teeth might have been influenced by local factors such as prolonged deciduous tooth retention, malposed tooth germs, but not causing arch-length deficiency and supernumerary teeth. Abnormalities such as those reported in the present case are significant during maxillofacial surgery

Multiple variations in the axillary arterial tree relevant to plastic surgery: A case report

While dissecting the body of a 59 years old male cadaver we observed "abnormal" branching pattern of the axillary artery and unusual vascular pedicles of the serratus anterior muscle. The serratus anterior branch originated directly first part of the axillary artery as the first branch. The lateral thoracic and thoracodorsal arteries arose together from the third part of the axillary artery as "a lateral thoracic-thoracodorsal" common trunk. The superior thoracic artery was out of the position. The circumflex scapular artery originated directly the third part of the axillary artery. The subscapular artery was not present. © 2007 Sociedad Chilena de Anatomía

Clinical and stereologic evaluation of osteochondroma

Osteochondroma is a benign tumor that is unusual in the maxillofacial region. Anatomy of the region, especially the mandible, is important for surgical intervention for the condylar osteochondroma. The present case report describes evaluation of condylar hyperplasia with emphasis on the advantages and disadvantages of sterolithographic solid model and stereologic techniques for preoperative surgical planning, operation time, and prognosis. Condylar osteochondoma was diagnosed by panoramic radiograph and 3-dimensional computerized tomography (3DCT) as well as histopathologic analysis in a male patient. Before surgery, a stereolithographic model was created and stereologic method was used based upon 3DCT. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2009; 108: e52-e56

Comparison of the Effects of 13-cis Retinoic Acid and Melatonin on the Viabilities of SH-SY5Y Neuroblastoma Cell Line

Objective : Neuroblastoma is one of common childhood tumors. Although its mortality is very high, there is no effective treatment yet. The aim of this project is to evaluate cytotoxic effects of melatonin (MLT) an endogen hormone and 13-cis retinoic acid (13-cis-RA) also named as isotretinoin an analogue of vitamin A on neuroblastoma SH-SY5Y cell line

Accidents of the elderly living in Kocaeli Region (Turkey)

The accidents seen in the elderly have a remarkable impact on their family life and the society they live in. In this study, we have aimed to assess the prevalence, types and characteristics of the accidents seen among the elderly. We performed a cross-sectional study. The data was collected from 486 old people living in Kocaeli Region, in 2003. Demographic features, numbers and the variety of accidents were recorded after interviews. The data were also obtained from a questionnaire given after a physical examination. The ratio of accidents was found to be 9.5% (46 cases) in the study group; of those 71.7% were indoor and 28.3% outdoor accidents. The causes of the accidents were falls (69.6%), cuts (13.0%) and stings (10.9%). The distribution of the indoor accidents was 72.7% for falls, 12.1% for cuts, 9.1% for stings and 6.1% for other injuries. The distribution of the outdoor accidents was 61.5% for falls, 15.4% for cuts, 15.4% for stings and 7.7% for burns. Fall-induced injuries seem to be a major problem among the elderly. The results of our study indicate that the occurrence of indoor accidents is an important health problem in the geriatric population. Crown Copyright (C) 2008 Published by Elsevier Ireland Ltd. All rights reserved

The volume prediction on the experimental design hippocampus using stereological method.

The application of stereologic techniques to the analysis of the nervous system has greatly contributed to the evaluation of the normal and pathological anatomy of the aging brain. Currently, the hippocampus still holds secrets about the aging process. Experimental researches on hippocampus morphology may contribute to the future researches. This study presents the volume and weight of left hippocampus using a stereological technique on light microscope. The mean weight of the encephalon without cerebellum was 6.1 +/- 0.1 g. The mean weight and the volume of the hippocampus were (mean perpendicular to SD) 0.28 perpendicular to 0.02 g and 0.28 perpendicular to 0.02 cm(3), respectively. The mean coefficient of error for the stereological volume estimation of the hippocampus was 0.03. The individual volume estimation of the subjects may be achieved by the Cavalieri method. Investigators believed that the findings and the applied technique in this study may be useful for clinicians

The premasseteric branch of facial artery: its importance for craniofacial surgery.

AIM: The masseter muscle is often exploited by craniofacial surgeons in transposition operations to correct facial palsy, benign masseteric hypertrophy; or neurectomy-induced atrophy of the muscle. A clear understanding of the course of the premasseteric branch of the facial artery and its relations with adjacent structures is essential in maneuvering the masseter muscle safely. In the present study the premasseteric branch was analyzed in details

Anatomy of the anteromedial thigh flap based on the oblique branch of the descending branch of the lateral circumflex femoral artery

Anteromedial thigh (AMT) flaps based on lateral circumflex femoral artery (LCFA) have characteristics which make them favourable for use in reconstruction of extensive thigh, head, neck and leg defects. AMT flap which is elevated on the artery has the advantages of low donor site morbidity and preservation of main arteries. Due to inconstant anatomy of the pedicle, the flap is mostly not preferable. Hence, we aimed to describe the anatomical features of the unnamed branch of the descending branch of the LCFA harvesting AMT flap. For this purpose, the external iliac artery was displayed bilaterally on 15 adult (13 males and 2 females; age range 55-82 years) preserved cadavers using latex injection. The perforator branch of the descending branch from the LCFA was microdissected under 4x loupe magnification. The perforator branch was located 28.53 (20.20-34.20) cm distal to the anterior superior iliac spine, 22.12 (13.40-28.00) cm distal to the pubic tubercle, and 13.20 (10.80-16.20) cm proximal to the interepicondylar line. At the level of origin point the mean diameter of the perforating branch was 0.17 cm and the mean diameter of its cutaneous branch was 0.14 cm. The mean length of the pedicle was 5.71 (3.70-9.00) cm. We conclude that our findings contribute to the literature in terms of anatomical knowledge for surgical safety

Anatomic Evaluation of Maxillary Sinus Septa: Surgery and Radiology

The anatomical structure of the maxillary sinus is fundamental to maxillofacial surgery. The presence of septa, located at the inner surface of the maxillary sinus, increases the risk of sinus membrane perforation during sinus elevation for dental implant surgery. The aim of this study was to evaluate the anatomy of maxillary sinus septa. Data in this study was obtained from a total of 205 cases. One hundred and seventy-seven patients were partially edentulous (PE) whereas 28 patients had no teeth. Dental computerized tomography (dental CT) was used in the assessment of 410 sinus segments (205 left and 205 right segments). The prevalence of sinus segments with septa was found to be 145/410. Septa were detected in 91 of the 177 PE cases. There were a total of 26 septa in 18 of the 28 completely edentulous (CE) cases. A total of 165 septa were detected in these segments. The prevalence of septa was 46.4% (26/56) in the CE, and 39.2% (139/354) in the PE segments. Thirty septa were found in the anterior, 110 in the middle and 25 in the posterior region. All detected septa were located mediolateral direction. Their relative position: lateral, middle or medial were also noted. The height measurements of the septa varied amongst the different positions. In view of the fact that septa of various heights and courses can develop in all parts of the maxillary sinus, timely and adequate assessment of the inner aspect of the maxillary sinus is essential to avoid complications during sinus augmentation procedures. Clin. Anat. 22:563-570, 2009. (C) 2009 Wiley-Liss, Inc