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  1. Effectiveness of custom-designed pointed laser light for teaching intraoral radiographic technique to undergraduate students: A comparative study
    Veerabhadrappa SK, Yadav S, Ganesh N, Ghani WMN, Khairah Bt Ismail U, Zamzuri ATB
    J Dent Educ, 2025 Jan 06.
    PMID: 39762459 DOI: 10.1002/jdd.13817
    OBJECTIVES: Intraoral periapical radiographic techniques are mandatory exercises taught to undergraduate students during their training. The key challenges encountered while teaching the bisecting angle technique (BAT) include correctly positioning the X-ray cone and adjusting the central X-ray beam to the tooth of interest. To address this, a custom-designed pointed laser light (CDPLL) was fabricated and attached to the X-ray cone. This study evaluated the effectiveness of CDPLL compared to conventional BAT in acquiring quality radiographs, reducing errors, and evaluating students' perceptions through a questionnaire.

    METHODS: Third-year Bachelor of Dental Surgery (BDS) students were divided into two groups of 26 each. Group 1 used Conventional BAT, while Group 2 employed Laser-Assisted BAT on a mannequin. Both techniques were taught through theory and clinical demonstrations. Students took radiographs of incisors, canines, premolars, and molars of both jaws. Group 1 students then transitioned to Laser-Assisted BAT and repeated the radiographs. Inter-group and intra-group comparisons of radiographic quality and errors were analyzed using Chi-Square tests.

    RESULTS: Group 2 produced more excellent (41.8%) and acceptable (47.6%) radiographs, with fewer unacceptable ones (10.6%) than Group 1 (p 

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