A multicentre tobacco cessation intervention study in the dental setting in Japan.

Objective: The objective of this study was to assess the efficacy of a tobacco cessation intervention conducted by different dental specialists directed at a group of patients with tobacco-related oral diseases or undergoing implant treatment.

Methods: The study design was a multicentre, nonrandomized prospective cohort study to examine the effects of smoking cessation. The target patients were current smokers (aged ≥20 years) with an oral potentially malignant disorder or periodontitis and those seeking dental implants.

A retrospective analysis of oral and maxillofacial injuries in motor vehicle accidents.

Purpose: To clarify the relations of the severity of oral and maxillofacial injuries from traffic accidents (TAs) to seating position and the use of restraint systems.

Patients And Methods: Hospital records were reviewed for all patients who had sustained oral or maxillofacial injuries in TAs and then were admitted to the Department of Oral and Maxillofacial Surgery, Dokkyo University School of Medicine (Tochigi, Japan), from 1994 through 2003.

Results: A total of 201 patients, with a mean injury severity score (ISS) of 7.

Characterization of patients with disc displacement without reduction unresponsive to nonsurgical treatment: a preliminary study.

Purpose: Arthrocentesis and arthroscopic lysis and lavage have been described as effective treatment modalities for temporomandibular joint (TMJ) disc displacement without reduction (DDw/oR). More commonly, nonsurgical intervention is offered as the desired first-line treatment; however, a certain group of DDw/oR patients receiving nonsurgical treatment may remain unresponsive, thereby prolonging suffering and treatment dissatisfaction. The purpose of this study is to characterize these nonresponders by evaluating the characteristic pretreatment findings peculiar to this group.