Pre-eruptive intracoronal resorption in orthodontic patients: A retrospective analysis of 3,143 patients

Zsuzsanna Gurdán; Dorottya Balázs; Dóra Pásti; Meetra Fathi; Péter Maróti; Kinga Kardos; Ana Pacheco; József Szalma

doi:10.1016/j.heliyon.2023.e18699

Pre-eruptive intracoronal resorption in orthodontic patients: A retrospective analysis of 3,143 patients

Heliyon. 2023 Jul 26;9(8):e18699. doi: 10.1016/j.heliyon.2023.e18699. eCollection 2023 Aug.

Authors

Zsuzsanna Gurdán¹, Dorottya Balázs¹, Dóra Pásti¹, Meetra Fathi¹, Péter Maróti², Kinga Kardos², Ana Pacheco³, József Szalma³

Affiliations

¹ Department of Orthodontics, Medical School, University of Pécs, 1. Tüzér st., Pécs, 7623, Hungary.
² 3D Printing and Visualisation Centre, University of Pécs, 2. Boszorkány st., Pécs, 7624, Hungary.
³ Department of Oral and Maxillofacial Surgery, Medical School, University of Pécs, 1. Tüzér st., Pécs, 7623, Hungary.

Abstract

Objectives: The aim of this retrospective study was to analyze the occurrence and characteristics of pre-eruptive intracoronal resorptions in a clinical orthodontic patient population.

Materials and methods: Patients treated in an orthodontic department (University of Pécs, Pécs, Hungary) were included. Unerupted teeth on panoramic radiographs were analyzed for intracoronal radiolucent lesions. For each patient, the demographic data, jaw localization, number of unerupted teeth with pre-eruptive intracoronal resorption lesions, number of lesions per tooth, size and localization of pre-eruptive intracoronal resorption defects, affected tooth's surface, pulp involvement and ectopic position of the tooth with defects were recorded.

Results: In the 3,143 patients investigated, 55 teeth in 49 patients showed pre-eruptive intracoronal resorption lesions (subject incidence: 1.56%). The incidence on unerupted teeth was 0.25%. Pre-eruptive intracoronal resorption was significantly more common in mandibles (43 mandibular vs. 12 maxillary lesions) with an odds ratio of 12.84 (95% Confidence Interval: 5.19-31.74) and no gender differences were found (p = 0.746). The occurrence of pre-eruptive intracoronal resorption was highest in the youngest (7-10 years) mixed dentition status group (p < 0.001). Most of the lesions (44 of 55, or 80.0%) were localized in the dentin, occupying two-third or less of the dentin thickness. Only 12.73% (7/55) of the lesions were not localized on the occlusal surface. Of the lesions, 89.1% (49/55) showed no obvious size increase over an average follow-up of 36.4 ± 8.1 months.

Conclusions: Pre-eruptive intracoronal resorption may occur mainly in the mixed dentition stage in orthodontic patients. Careful and attentive radiographic evaluations may facilitate early detection and follow-up of the lesions' possible dimensional changes, especially when resorption influences orthodontic extraction therapy.

Keywords: PEIR; PIR; Pre-eruptive intracoronal resorption; Radiolucent lesion; Unerupted teeth.