Dental and oral radiographic findings in first-year university students in 1982 and 2002 in Helsinki, Finland.

Objective: This study is part of a larger research program, at the Finnish Student Health Service in Helsinki, in which changes in the dental and oral health of first-year university students (born in Helsinki) in the years 1982 and 2002 were compared.

Material And Methods: Panoramic radiographs were taken of 176 students in 1982, mean age 19.8 years (SD+/-0.

Oral piercings among first-year university students.

Objective: The aim of the study was to examine oral piercings among first-year university students.

Study Design: First-year university students in 2002 were invited to a dental examination (n = 234; 49 men and 185 women). Students with piercings formed the study group and the rest served as controls.

Clinical outcome of third molars in adults followed during 18 years.

Purpose: The aim of the present study was to follow the clinical changes in third molar status during an 18-year period in patients aged 20 to 38 years.

Patients And Methods: The series consisted of 118 subjects (37 men and 81 women). In the beginning of the study, the mean age was 20.

Dental injuries in ice hockey games and training.

Purpose: The purpose of this study was to determine the incidence, cause, and nature of maxillofacial and dental injuries in ice hockey games and training and also evaluate the use and the effect of dental or facial guards.

Methods: Maxillofacial and dental ice hockey injuries in Finland were studied during years 1991 and 1992. Material was gathered from the insurance company that had practically all the ice hockey licenses in those years.

Radiographic follow-up of impacted third molars from age 20 to 32 years.

Nineteen patients (13 male, six female) with 34 impacted third molars, 21 in the mandible and 13 in the maxilla were radiographically followed from age 20 to 32. All were examined clinically and panoramic radiographs were taken at baseline and at the end of the study. Radiographic analysis included resorption of teeth, enlargement of the follicle, development of the root, change in inclination of the third molar, state of impaction, relative depth of the third molar in bone and relation to the ramus of the mandible and to the second molar tooth.