Panoramic Evaluation of External Root Resorption in Mandibular Molars During Orthodontic Treatment: a Comparison Between Root-filled and Vital Teeth Treated with Fixed Appliances or Clear Aligners

Overview

Journal BMC Oral Health

Publisher Biomed Central

Specialty Dentistry

Date 2024 Sep 28

PMID 39342188

Authors

Safa Kurnaz

Muhammed Hilmi Buyukcavus

Affiliations

Soon will be listed here.

Abstract

Background: This investigation compared the extent of external apical root resorption (EARR) in root-filled teeth (RFT) and their contralateral vital pulp teeth (VPT) counterparts during orthodontic treatment (OT) with clear aligner (CA) treatment or fixed appliance (FA) treatment.

Methods: Sixty-six patients with similar baseline American Board of Orthodontics (ABO) discrepancy index scores were divided into two groups: 37 patients (21 females, 16 males; mean age 17.45 ± 2.67 years) in the FA group, and 29 patients (18 females, 11 males; mean age 18.33 ± 1.96 years) in the CA group. Digital panoramic radiographs captured pre- and post-OT were used to measure tooth lengths and root surface measurements in mandibular molars. EARR in both RFT and contralateral VPT was evaluated pre- and post-OT. Statistical analysis employed paired t-tests, independent t-tests, and analysis of covariance (ANCOVA) (p < .05).

Results: All teeth exhibited varying degrees of EARR following OT. FA treatment resulted in significantly longer treatment duration (p < .05) and greater EARR compared to CA treatment (p < .05). Moreover, statistically significant differences in EARR were observed within both groups between RFT and VPT (p < .05).

Conclusions: Comparison of pre- and post-OT radiographs revealed different degrees of EARR in all teeth. CA treatment resulted in less frequent and less severe EARR compared to FA treatment. RFT demonstrated greater resistance to EARR than VPT in both treatment groups.

Citing Articles

Clear Aligner Treatment: Indications, Advantages, and Adverse Effects-A Systematic Review.

Hartogsohn C, Sonnesen L Dent J (Basel). 2025; 13(1).

PMID: 39851616 PMC: 11764167. DOI: 10.3390/dj13010040.

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