The Reliability and Validity of Intraoral Photographs in Assessing Orthodontic Treatment Need.

Background: Orthodontic treatment need has commonly been assessed using treatment need indices during clinical examinations or using photographs in combination with plaster casts. Recently, the use of intraoral photographs alone to screen malocclusions has increased.

Objective: This study aimed to validate intraoral photographs for the assessment of orthodontic treatment need.

Spontaneous space closure in patients treated with early extraction of the first permanent molar: a retrospective cohort study using radiographs.

Objectives: To assess the success rate of spontaneous space closure after extraction of the first permanent molar (FPM) in the maxilla and the mandible, and to identify the factors that make spontaneous space closure most favorable in each.

Materials And Methods: A retrospective records-based cohort study was conducted through a search of the database of the Public Dental Service, Stockholm County Council, Stockholm, for young adults born between 2000 and 2001, who underwent extraction of one or more FPM between 2006 and 2016. A total of 995 extracted teeth were identified, of which 203 teeth in 155 patients met the inclusion criteria.

Malocclusions and quality of life among adolescents: a systematic review and meta-analysis.

Background: Malocclusions in adolescents might have a negative impact on oral health-related quality of life (OHRQoL). Potential confounding variables (confounders) such as age, gender, caries, and socioeconomic status may skew the real relationship between malocclusions and OHRQoL.

Objectives: To analyse the effect of malocclusions in adolescents on OHRQoL, when controlled for potential confounders.

Prospective associations between ECG abnormalities and death or myocardial infarction in a cohort of 980 employed, middle-aged Swedish men.

Background: In 1993, 1000 randomly selected employed Swedish men aged 45-50 years were invited to a nurse-led health examination with a survey on life style, fasting lab tests, and a 12-lead ECG. A repeat examination was offered in 1998. The ECGs were classified according to the Minnesota Code.

Translation and validation of the Swedish version of the Psychosocial Impact of Dental Aesthetics Questionnaire (PIDAQ) for adolescents.

Objective: The Psychosocial Impact of Dental Aesthetics Questionnaire (PIDAQ) is an instrument developed for assessment of orthodontic aspects of oral health-related quality of life (OHRQoL). This study aimed to translate and validate the Swedish version of PIDAQ for use in Swedish adolescents 12-19 years of age.

Material And Methods: The translation was made according to the process described in 'Guidelines for Establishing Cultural Equivalency of Instruments' by Ohrbach .