Evaluation of Enamel Demineralization Around Bonded Lingual Retainers Cured Using the Transillumination Technique: An in Vitro SemStudy

Authors

• Monis Raza, Department of Orthodontics & Dentofacial Orthopaedics, Institute of Dental Studies & Technologies, Modinagar, Ghaziabad (U.P)201201, IndiaFollow
• Achint Juneja, Department of Orthodontics & Dentofacial Orthopaedics, Institute of Dental Studies & Technologies, Modinagar, Ghaziabad (U.P)201201, IndiaFollow
• Udit Chaudhary, Department of Orthodontics & Dentofacial Orthopaedics, Subharti Dental College, Swami Vivekanand Subharti UniversityFollow
• Anju Treesa Jacob, Department of Orthodontics & Dentofacial Orthopaedics, Royal Dental College, Iron Hills, Chalissery, Palakkad district, Kerala- 679536, IndiaFollow
• Vikas Thakur, Department of Orthodontics & Dentofacial Orthopaedics, Sudha Rustagi College of Dental Sciences & Research, Sector 89, Kheri More, Faridabad, Haryana- 121014, IndiaFollow
• Aayush Sudan, Department of Orthodontics & Dentofacial Orthopaedics, Institute of Dental Studies & Technologies, Modinagar, Ghaziabad (U.P)201201, IndiaFollow

Abstract

Introduction: Polymerization technique may influence enamel demineralization around bonded lingual retainers by affecting adhesive integrity.

Methods: Eighty-four mandibular incisors were randomly allocated to conventional curing (30 s), transillumination (30 s), or combined curing (15 s each). Specimens underwent pH cycling and were evaluated using scanning electron microscopy. Demineralization was scored (0–3), and linear lesion depth was measured. Data were analyzed using Kruskal–Wallis, Bonferroni, and Mann–Whitney tests (p ≤ 0.05).

Results: Combined curing significantly reduced demineralization compared with conventional and transillumination protocols (p < 0.001). Gingival regions showed significantly greater demineralization than occlusal regions across all groups.

Conclusions: Combined curing improved enamel preservation and may be an effective strategy for bonded lingual retainers.

Recommended Citation

Raza, Monis; Juneja, Achint; Chaudhary, Udit; Jacob, Anju Treesa; Thakur, Vikas; and Sudan, Aayush (2026) "Evaluation of Enamel Demineralization Around Bonded Lingual Retainers Cured Using the Transillumination Technique: An in Vitro SemStudy," International Arab Journal of Dentistry: Vol. 17: Iss. 4, Article 11.
DOI: https://doi.org/10.65314/2218-0885.1982
Available at: https://e-journals.usj.edu.lb/iajd/vol17/iss4/11