PMID- 31065268 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220408 IS - 1687-8728 (Print) IS - 1687-8736 (Electronic) IS - 1687-8728 (Linking) VI - 2019 DP - 2019 TI - A Novel Analysis via Micro-CT Imaging Indicates That Chemically Modified Tetracycline-3 (CMT-3) Inhibits Tooth Relapse after Orthodontic Movement: A Pilot Experimental Study. PG - 3524207 LID - 10.1155/2019/3524207 [doi] LID - 3524207 AB - OBJECTIVE: To evaluate the effect of chemically modified tetracycline-3 (CMT-3) and simvastatin on tooth relapse after orthodontic movement in rats using a novel analysis method employing high-resolution micro-CT (Micro-CT) images. In addition, the correlation between bone density and orthodontic relapse was also evaluated for each experimental group. METHODS: Forty adult male Wistar rats had stainless steel springs installed on their left upper first molars in order to generate tooth movement for 18 days. After this initial period, the animals were divided into three groups: (1) 30 mg/kg of CMT-3; (2) 5 mg/kg of simvastatin; and (3) 0.5% carboxymethylcellulose, and each group was treated for 20 days. Micro-CT images were analyzed (conventional method and 3D reconstruction) on the 7th and 18th days following spring fixation and finally, 20 days after treatment either with CMT-3 or simvastatin (38th day). Bone mineral density (BMD) of the mesial and distal roots of the upper first molar was also analyzed. RESULTS: The difference was statistically significant between the groups as to recurrence (p=0.048), and the post hoc test identified the value of p=0.007 between the control group and the CMT-3 group. Simvastatin was not able to inhibit tooth relapse. The bone mineral densities of both the mesial and distal roots were different between the three groups, after the 20th day of drug use (p=0001 and p < 0001). CONCLUSION: Our findings support the initial evidence that CMT-3 is able to prevent relapse after tooth movement. Future trials in humans should evaluate such treatment as a promising approach to preventing this common phenomenon. CLINICAL RELEVANCE: Considering the results obtained, CMT-3 can be used to avoid relapse after tooth movement. FAU - Vieira, Giovanni Modesto AU - Vieira GM AUID- ORCID: 0000-0002-6061-8123 AD - Department of Medical Sciences, University of Brasilia (UnB), Campus Darcy Ribeiro, Asa Norte, Zip Code: 70910-90, Brasilia, DF, Brazil. FAU - Falcao, Denise Pinheiro AU - Falcao DP AUID- ORCID: 0000-0002-5617-8401 AD - Department of Medical Sciences, University of Brasilia (UnB), Campus Darcy Ribeiro, Asa Norte, Zip Code: 70910-90, Brasilia, DF, Brazil. FAU - de Queiroz, Sormani Bento Fernandes AU - de Queiroz SBF AD - Department of Surgery and Integrated Clinic, University of Aracatuba Dental School (UNESP), 1193 Jose Bonifacio Street, Zip Code: 16015-050, Aracatuba, SP, Brazil. FAU - de Lima, Valthierre Nunes AU - de Lima VN AUID- ORCID: 0000-0001-7673-4439 AD - Department of Surgery and Integrated Clinic, University of Aracatuba Dental School (UNESP), 1193 Jose Bonifacio Street, Zip Code: 16015-050, Aracatuba, SP, Brazil. FAU - Bentes de Azevedo, Ricardo AU - Bentes de Azevedo R AD - Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasilia (UnB), Campus Darcy Ribeiro, Asa Norte, Zip Code: 70910-90, Brasilia, DF, Brazil. FAU - Tiziane, Valdenize AU - Tiziane V AD - Department of Medicine, Brasilia Children's Hospital Brasilia, St. de Habitacoes Individuais Sul QI 15 - Lago Sul, Zip Code 71680-603, Brasilia, DF, Brazil. FAU - Moreno, Heitor AU - Moreno H AD - Department of Farmacology, Campinas State University (FCM/UNICAMP), 126 Tessalia Vieira de Camargo Street, Zip Code: 6111, Campinas, SP, Brazil. FAU - Amorim, Rivadavio AU - Amorim R AUID- ORCID: 0000-0001-6341-2027 AD - Department of Medical Sciences, University of Brasilia (UnB), Campus Darcy Ribeiro, Asa Norte, Zip Code: 70910-90, Brasilia, DF, Brazil. LA - eng PT - Journal Article DEP - 20190401 PL - Egypt TA - Int J Dent JT - International journal of dentistry JID - 101524183 PMC - PMC6466921 EDAT- 2019/05/09 06:00 MHDA- 2019/05/09 06:01 PMCR- 2019/04/01 CRDT- 2019/05/09 06:00 PHST- 2018/08/26 00:00 [received] PHST- 2018/11/11 00:00 [revised] PHST- 2018/12/03 00:00 [accepted] PHST- 2019/05/09 06:00 [entrez] PHST- 2019/05/09 06:00 [pubmed] PHST- 2019/05/09 06:01 [medline] PHST- 2019/04/01 00:00 [pmc-release] AID - 10.1155/2019/3524207 [doi] PST - epublish SO - Int J Dent. 2019 Apr 1;2019:3524207. doi: 10.1155/2019/3524207. eCollection 2019.