Tonsillectomy as a risk factor of periodontitis: A population-based cohort study.

Background: To determine whether patients who had undergone tonsillectomy would have higher risks of postoperative periodontitis.

Methods: Data were collected from the Taiwan Longitudinal Health Insurance Dataset from 1999 to 2013, a population-based cohort study consisting of cases of newly-onset sleep apnoea, chronic diseases of tonsils and adenoids, peritonsillar abscess, and periodontal diseases. A total of 1482 tonsillectomy cases and 14,796 non-tonsillectomy controls were selected.

MTA pulpotomy as an alternative to root canal treatment in children's permanent teeth in a dental public health setting.

Objective: This prospective clinical study evaluated the success of vital pulpotomy treatment for permanent teeth with closed apices using mineral trioxide aggregates (MTA) in a dental public health setting.

Methods: Twenty-seven mature permanent first molars and 2 premolars (in 25 patients) with carious exposure were treated using MTA pulpotomy. Age of patients ranged from 10- to 15-years (mean=13.