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ORIGINAL ARTICLE
Year : 2021  |  Volume : 13  |  Issue : 6  |  Page : 1496-1500

Evaluation of long-term stability of secondary alveolar bone grafts in cleft palate patients using multislice computed tomography and three-dimensional printed models: A prospective study


1 Department of Orthodontics and Dentofacial Orthopaedics, SDM College of Dental Sciences and Hospital, Dharwad, Karnataka, India
2 Department of Oral Medicine and Radiology, SDM College of Dental Sciences and Hospital, Dharwad, Karnataka, India
3 Former Hospital Administrator, SDM College of Dental Sciences and Hospital, Dharwad, Karnataka, India
4 SRM Institute of Science and Technology, Chennai, Tamil Nadu, India
5 Department of Periodontics and Implantology, SDM College of Dental Sciences and Hospital, Dharwad, Karnataka, India
6 Department of Oral and Maxillofacial Surgery, SDM College of Dental Sciences and Hospital, Dharwad, Karnataka, India

Correspondence Address:
S Raja Rajeswari
Senior Lecturer, Department of Periodontics, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jpbs.jpbs_265_21

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Aim: Three-dimensional (3D) printed models are contemporary volumetric bone graft assessment technique for secondary alveolar bone grafting (SABG) in cleft lip and palate (CLP) patients. The study aimed at evaluation of long-term stability of iliac autograft in SABG using multislice computed tomography (CT) and 3D-printed model-based volumetric analysis. Materials and Methods: Twenty-eight patients were included in this prospective clinical study. CT image (T1) was taken after orthodontic maxillary expansion, correlating with the presurgical image. Furthermore, 3D-printed model was prepared, and volumetric assessment of graft needed was ascertained with water displacement technique. SABG was carried on with the anterior iliac crest autografting procedure. After 1-year follow-up, postoperative CT analysis (T2) was followed upon. Results: The stability of bone graft at the 1-year postoperative was found to be 43.74% with mean bone loss of 56.26% (95% confidence interval; P < 0.005). The moderate scale of CLP cases has shown statistically significant bone stability compared to that of severe and mild cases. Furthermore, the 3D-printed model has shown a significant difference to that of T1 CT imaging (P < 0.005). Conclusion: Within the limitations of the study, it seems appropriate to conclude that 3D-printed models serves as better reference than CT imaging in the context of planning and execution of precise bone grafting in SABG.


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