AIM The aim of this study was to determine the frequency and distribution of third-molar agenesis in orthodontic patients from the East Anatolian Region of Turkey. METHODS AND MATERIALS Our data were obtained from the panoramic radiographs of the 2,579 patients 12 to 16 years of age in the Department of Orthodontics at the Atatürk University in Erzurum, Turkey. Subjects with congenital deform...

BACKGROUND Although third-molar extraction is common in the U.S., there are few reports on the relationship between third-molar extraction and temporomandibular disorder (TMD). The aim of this study was to investigate this potential association. METHODS The authors enrolled study subjects on their 15th birthdays and followed them continuously for a minimum of five years. The authors ascertain...

The aim of this study was to investigate the prevalence of third molar agenesis and other associated dental anomalies in Bangladeshi population and to investigate the relationship of other dental anomalies with the third molar presence/agenesis. A retrospective study was performed using panoramic radiographs of 5923 patients, who ranged in age from 10 to 50 years. All radiographs were analyzed ...

We have used a combination of theory and experiment to assess how information is represented in a realistic cortical population response, examining how motion direction and timing is encoded in groups of neurons in cortical area MT. Combining data from several single-unit experiments, we constructed model population responses in small time windows and represented the response in each window as ...

Protein structures are a very special class among all possible structures. It has been suggested that a "designability principle" plays a crucial role in nature's selection of protein sequences and structures. Here, we provide a theoretical base for such a selection principle, using a simple model of protein folding based on hydrophobic interactions. A structure is reduced to a string of 0s and...

AIMS AND OBJECTIVES To evaluate the role of prophylactic antibiotics, if any, in the removal of mandibular impacted third molars. PATIENTS AND METHODS A total of 89 patients were randomly allocated in 3 groups (group 1, placebo; group 2, amoxicillin 1 g orally 1 h before surgery; and group 3, metronidazole 800 mg orally 1 h before surgery). RESULTS Of the 89 patients, 5 had surgical wound i...

PURPOSE The purpose of this study was to determine the incidence of Inferior Alveolar Nerve (IAN) damage after surgical removal of lower third molars, to identify the cause and to construct a predictive model to assess the risk of IAN injury. MATERIALS AND METHODS Patients were selected from the out patient department after proper clinical and radiological evaluation of mandibular third molar...

Tooth autotransplantation defines as transition of one tooth from one position to another, in same individual. It is a biological procedure in which teeth have the potential to induce alveolar bone growth. It can be applied in patients before adolescence growth is finished. It significantly reduces time and cost compared to implants. Healing rapidly occurs and function is regained almost immedi...