Effect of Piezoelectric Sutural Ostectomies on Accelerated Bone-Borne Sutural Expansion

Alyessary, A.S. and Yap, A.U.J. and Othman, Siti Adibah and Rahman, Mohammad Tariqur and Radzi, Zamri (2018) Effect of Piezoelectric Sutural Ostectomies on Accelerated Bone-Borne Sutural Expansion. Journal of Oral and Maxillofacial Surgery, 76 (3). pp. 616-630. ISSN 0278-2391, DOI https://doi.org/10.1016/j.joms.2017.08.018.

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Abstract

Purpose The present study investigated the effect of piezoelectric sutural ostectomies on accelerated bone-borne sutural expansion. Materials and Methods Sixteen male New Zealand white rabbits (20 to 24 weeks old) were randomly divided into 4 experimental groups (n = 4): group 1, conventional rapid sutural expansion; group 2, accelerated sutural expansion; group 3, accelerated sutural expansion with continuous ostectomy; and group 4, accelerated sutural expansion with discontinuous ostectomy. All sutural ostectomies were performed using a piezoelectric instrument (Woodpecker DTE, DS-II, Guangxi, China) before expander application with the rabbits under anesthesia. Modified hyrax expanders were placed across the midsagittal sutures of the rabbits and secured with miniscrew implants located bilaterally in the frontal bone. The hyrax expanders were activated 0.5 mm/day for 12 days (group 1) or with a 2.5-mm initial expansion, followed by 0.5 mm/day for 7 days (groups 2 to 4). After 6 weeks of retention, the bone volume fraction, sutural separation, and new bone formation were evaluated using micro-computed tomography and histomorphometry. Statistical analysis was performed using Kruskal-Wallis and Mann-Whitney U tests and Spearman's rho correlation (P < .05). Results Ranking of the median sutural separation was as follows: group 1, 3.05 mm; group 2, 3.97 mm; group 4, 4.78 mm; and group 3, 5.66 mm. The least and most bone formation were observed in groups 1 (63.63%) and 3 (75.93%), respectively. Spearman's correlation showed a strong, positive, and significant correlation (r = 0.932; P < .01) between the new sutural bone formation and amount of sutural separation. Conclusions Piezoelectric sutural ostectomies increased the rate of sutural separation and promoted new sutural bone formation/osteogenesis. Continuous ostectomy gave better results than discontinuous ostectomy.

Item Type:	Article
Funders:	UNSPECIFIED
Uncontrolled Keywords:	Rapid maxillary expansion; Palatal expansion; Orthognathic surgery; Implant anchorage; Piezosurgery; Osteotomy; Regeneration; Distraction; Therapy; Models; Dentistry, Oral Surgery & Medicine
Subjects:	R Medicine > RK Dentistry R Medicine > RK Dentistry > Practice of dentistry. Dental economics
Divisions:	Faculty of Dentistry
Depositing User:	Mr Ahmad Azwan Azman
Date Deposited:	25 Apr 2018 03:55
Last Modified:	20 Jun 2019 01:39
URI:	http://eprints.um.edu.my/id/eprint/18571

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