Abstract
Introduction
The objective of this retrospective study was to assess the outcome of periapical
surgery in a large number of molars in order to identify possible variables that might
affect the outcome.
Methods
The healing outcome of patients undergoing periapical surgery of molars from October
1999 to October 2019 was retrospectively evaluated. Outcome was dichotomized into
“healed” and “nonhealed” using well-established clinical and radiographic healing
criteria. The potential influence of patient-, tooth-, and treatment-related parameters
on the healing outcome was analyzed.
Results
A total of 424 molars in the same number of patients (45.5% male and 54.5% female)
were evaluated. Three hundred seventy-two molars were classified as healed (87.7%).
Three significant outcome predictors were identified: 1-year follow-up versus >1–5 years,
>5–10 years, and >10 years (95.3% vs 82.2%, 76.3%, and 76.5% healed, respectively;
P < .0001); root end filling material with bioceramic root repair material versus mineral
trioxide aggregate (96.9% vs. 86.3% healed, respectively; P = .001); and preoperative evaluation based on cone-beam computed tomographic imaging
versus 2-dimensional radiography (90.2% vs 81.4% healed, respectively; P = .02). Sex, age, tooth location, type of restoration, attachment level, presence
of a post, quality of the root canal filling, technique of root end preparation, administration
of antibiotics, and type of surgery had no significant impact on the healing outcome.
Conclusions
The healed rate for the concave (Retroplast) and cavity (mineral trioxide aggregate,
SuperEBA [Staident International, Staines, UK], and bioceramic root repair material)
root end preparation technique over all follow-up periods was 84% and 88.5%, respectively.
The follow-up period, root end filling material, and preoperative evaluation based
on cone-beam computed tomographic imaging had a significant influence on the healing
outcome.
Key Words
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Article info
Publication history
Published online: September 06, 2021
Identification
Copyright
© 2021 American Association of Endodontists.
