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KJO Korean Journal of Orthodontics

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Korean J Orthod   

First Published Date August 9, 2022

Copyright © The Korean Association of Orthodontists.

Effectiveness of Low Level Laser Therapy in Facilitating and Retaining Maxillary Expansion using Bone-Borne Hyrax Expander 6-months after Retention: A Randomized Clinical Trial

Sara Abdelwassie 1 B.D.S., M.Sc., Mohammed Amgad Kaddah2 B.D.S., M.Sc., PhD., Amr Emad El-Dakroury2 B.D.S., M.Sc., PhD., Dalia El-Boghdady 3 B.D.S., M.Sc., PhD, Mohamed “Abd El-Ghafour” 3, B.D.S., M.Sc., PhD, M Orth RCSEd, Nouran Fouad Seifeldin 3 B.D.S., M.Sc., PhD.

1 Post Graduate Candidate, Department of Orthodontics, Faculty of Dentistry, Cairo University, Cairo, Egypt.
2 Professor, Department of Orthodontics, Faculty of Dentistry, Cairo University, Cairo, Egypt.
3 Lecturer, Department of Orthodontics, Faculty of Dentistry, Cairo University, Cairo, Egypt.

Correspondence to:Dr. Sara Hassan Abdelwassie, B.D.S., M.Sc.
Business Address: Department of Orthodontics, Faculty of Dentistry, Cairo University. 11 El-Saraya Street, Manial, Cairo Egypt.
Home Address: 15 B Taha Hussein, Zamalek, Cairo, Egypt.
Tel: +201006999906 - +966533888844
Email: sara.a.966@gmail.com
Financial Disclosure Statement: There are no funders to be reported for this study.

Abstract

Introduction: The objective of this randomized clinical trial (RCT) is to study the skeletal and dental effect of Low Level Laser Therapy (LLLT) along with miniscrew-assisted-expander (Hyrax) after six months of retention. Methods: After sequence generation, concealed allocation and implementation, 24 female patients were randomly divided (1:1) into two-groups: bone-borne rapid palatal expansion (BBE) without LLLT (n=12) and bone-borne rapid palatal expansion with LLLT (n=12). Eligibility criteria included female patients with aged 10-13 years old with bilateral posterior crossbite. Intraoral and extraoral photographs, CBCT images and digital study models were obtained before expansion and 6 months post-retention. The 7 mm hyrax appliance was anchored to four palatal mini-screws where it was activated twice daily for 15 days then locked and kept in place as a retainer. LLLT was performed in the laser group during expansion and retention according to the guidelines provided. This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors. Results: Records of 24 patients were analyzed. According to the post-retention measurements, both groups showed a significant increase in the nasal and maxillary widths and the total facial height. In the laser group, SNA and ANB angles and the inter-premolar apical distance were significantly increased. Conclusions: Within the limitations of this study, the results suggest that the used parameters and protocol of LLLT did not clinically affect the efficiency of BBE in prepubertal and pubertal patients. Funding: nothing to be declared.

Keywords: 3D diagnosis and treatment planning, Expansion, Laser, Orthodontic mini-implants

Article

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Korean J Orthod   

First Published Date August 9, 2022

Copyright © The Korean Association of Orthodontists.

Effectiveness of Low Level Laser Therapy in Facilitating and Retaining Maxillary Expansion using Bone-Borne Hyrax Expander 6-months after Retention: A Randomized Clinical Trial

Sara Abdelwassie 1 B.D.S., M.Sc., Mohammed Amgad Kaddah2 B.D.S., M.Sc., PhD., Amr Emad El-Dakroury2 B.D.S., M.Sc., PhD., Dalia El-Boghdady 3 B.D.S., M.Sc., PhD, Mohamed “Abd El-Ghafour” 3, B.D.S., M.Sc., PhD, M Orth RCSEd, Nouran Fouad Seifeldin 3 B.D.S., M.Sc., PhD.

1 Post Graduate Candidate, Department of Orthodontics, Faculty of Dentistry, Cairo University, Cairo, Egypt.
2 Professor, Department of Orthodontics, Faculty of Dentistry, Cairo University, Cairo, Egypt.
3 Lecturer, Department of Orthodontics, Faculty of Dentistry, Cairo University, Cairo, Egypt.

Correspondence to:Dr. Sara Hassan Abdelwassie, B.D.S., M.Sc.
Business Address: Department of Orthodontics, Faculty of Dentistry, Cairo University. 11 El-Saraya Street, Manial, Cairo Egypt.
Home Address: 15 B Taha Hussein, Zamalek, Cairo, Egypt.
Tel: +201006999906 - +966533888844
Email: sara.a.966@gmail.com
Financial Disclosure Statement: There are no funders to be reported for this study.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Introduction: The objective of this randomized clinical trial (RCT) is to study the skeletal and dental effect of Low Level Laser Therapy (LLLT) along with miniscrew-assisted-expander (Hyrax) after six months of retention. Methods: After sequence generation, concealed allocation and implementation, 24 female patients were randomly divided (1:1) into two-groups: bone-borne rapid palatal expansion (BBE) without LLLT (n=12) and bone-borne rapid palatal expansion with LLLT (n=12). Eligibility criteria included female patients with aged 10-13 years old with bilateral posterior crossbite. Intraoral and extraoral photographs, CBCT images and digital study models were obtained before expansion and 6 months post-retention. The 7 mm hyrax appliance was anchored to four palatal mini-screws where it was activated twice daily for 15 days then locked and kept in place as a retainer. LLLT was performed in the laser group during expansion and retention according to the guidelines provided. This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors. Results: Records of 24 patients were analyzed. According to the post-retention measurements, both groups showed a significant increase in the nasal and maxillary widths and the total facial height. In the laser group, SNA and ANB angles and the inter-premolar apical distance were significantly increased. Conclusions: Within the limitations of this study, the results suggest that the used parameters and protocol of LLLT did not clinically affect the efficiency of BBE in prepubertal and pubertal patients. Funding: nothing to be declared.

Keywords: 3D diagnosis and treatment planning, Expansion, Laser, Orthodontic mini-implants