Effect of cervical lesions on the rate of survival without fracture in endodontically treated premolars with exposed proximal cavity and restored with resin composite

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Kantaporn Kaewchomphoo
Danuchit Banomyong
Yaowaluk Ngoenwiwatkul
Piyapanna Pumpaluk

Abstract

Objectives: This retrospective study aimed to investigate the effect of an additional cervical lesion on the rate of survival without fracture in endodontically treated teeth (ETT) with exposed occluso-proximal cavity and restored with direct resin composite, and to identify the predisposing factors of fracture.


Materials and Methods: Clinical and radiographic records of patients who received endodontic treatment and direct resin composite restoration in premolars during 2011-2020 were reviewed. Data regarding premolar ETT with exposed occluso-proximal cavity- with (CII+V) and without (CII) the cervical lesion, were analyzed. Incidences of postoperative fracture were identified and categorized into ‘restorable’ or ‘non-restorable’. Cumulative survival rates of CII and CII+V were compared using Kaplan-Meier survival analysis and log-rank test (p-value = 0.05). Cox proportional hazard model was used to identify any potential risk factors for fracture.


Results: In the 102 premolar ETT analyzed from 89 patients, 53 and 49 teeth were CII and CII+V, respectively. With a recall period of 30.7±16.4 months, no significant difference in the cumulative survival rate without fracture between CII (49/53, 92.5%) and CII+V (44/49, 89.8%). For the fractured ETT, a higher incidence of non-restorable and crown-root fracture was reported in CII+V. No predisposing factor for fracture was identified.


Conclusions: The presence of restored cervical lesion did not affect the rate of survival without fracture in premolar ETT with exposed occluso-proximal cavity and restored with resin composite.

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1.
Kaewchomphoo K, Banomyong D, Ngoenwiwatkul Y, Pumpaluk P. Effect of cervical lesions on the rate of survival without fracture in endodontically treated premolars with exposed proximal cavity and restored with resin composite. M Dent J [Internet]. 2021 Nov. 16 [cited 2023 Feb. 3];41(3):197-204. Available from: https://he02.tci-thaijo.org/index.php/mdentjournal/article/view/251306
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