Prevalence and Associated Periodontal Status of Teeth with Root Perforation: A Retrospective Study of 2,002 Patients’ Medical Records

By Tsesis I, Roseberg E, Faivishevky V, Kfir A, Katz M, Rosen E

Date: 02/2012
Journal: JOE

Purpose: to retrospectively evaluate the prevalence of root perforations and associated pathological changes in the adjacent periodontal tissues


•Full PA status survey were evaluated for patients accepted for tx between 1990-2008 and demographic data recorder

•Radiographs digitized and evaluated by 2 examiners

•For each patient, total number of teeth and endo-treated teeth recorded then teeth divided into groups: Mand molars, Max molars, Mand premolars, Max premolars, Mand anteriors, Max anteriors

•For teeth with perforations; location, size, and pathological changes in PDL (RL) recorded.

•Location depending on crestal bone level: coronal, crestal, apical.

•Size: Large (>0.5 mm), small (<0.5 mm)


N = 2002 (1010 male, 992 female) / 5048 teeth

•116 perforations located in 101 patients (2.3% of ETT)

•Crestal perforations were associated with more pathological changes in PDL

•100% of pathological changes were associated with large crestal perforations

•Perforations occurred in mandibular molars more significantly (24% of all ETT, and 54% of all perforations)

Clinical significance:.

if perforation occurs, the main goal is to seal the PDL and prevent long-term damage. Proper knowledge and careful procedure could prevent it, but if occurs, sealing is the aim.