Physical properties of root cementum: Part 26. Effects of micro-osteoperforations on orthodontic root resorption: A microcomputed tomography study
| Autor: | Oyku Dalci, Alexandra K. Papadopoulou, M. Ali Darendeliler, Peter Petocz, Emmanuel Chan |
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| Rok vydání: | 2018 |
| Předmět: |
Adult
Male 0301 basic medicine X-ray microtomography Adolescent Tooth Movement Techniques Root Resorption Orthodontics Root resorption Young Adult 03 medical and health sciences 0302 clinical medicine stomatognathic system Premolar Humans Medicine Bicuspid In patient Prospective Studies Cementum Tooth Root Child Dental Cementum business.industry X-Ray Microtomography 030206 dentistry Microcomputed tomography medicine.disease 030104 developmental biology medicine.anatomical_structure Tooth movement Tooth Extraction Female Dental cementum business |
| Zdroj: | American Journal of Orthodontics and Dentofacial Orthopedics. 153:204-213 |
| ISSN: | 0889-5406 |
| Popis: | Introduction Studies have demonstrated the potential efficacy of micro-osteoperforations in accelerating tooth movement by amplifying the expression of inflammatory markers. The aim of this investigation was to examine the effects of micro-osteoperforations on orthodontic root resorption with microcomputed tomography. Methods This prospective controlled clinical trial involved 20 subjects requiring extraction of the maxillary first premolars as part of their orthodontic treatment. A buccal tipping force of 150 g was applied to both premolars. Using the Propel appliance (Propel Orthodontics, San Jose, Calif), micro-osteoperforations were applied at a depth of 5 mm on the mesial and distal aspects in the midroot region of the experimental side of the first premolar root; the contralateral side served as the control. After 28 days, both premolars were extracted. The teeth were scanned under microcomputed tomography, and the volumes of root resorption craters were calculated and compared. Results Premolars treated with micro-osteoperforation exhibited significantly greater average total amounts of root resorption than did the control teeth (0.576 vs 0.406 mm3). The total average volumetric root loss of premolars treated with micro-osteoperforation was 42% greater than that of the control teeth. Conclusions This 28-day trial showed that micro-osteoperforations resulted in greater orthodontic root resorption. However, these results should be verified in patients who are undergoing full-length orthodontic treatment. |
| Databáze: | OpenAIRE |
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