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Enamel Roughness Changes after Removal of Orthodontic Adhesive

Department of Orthodontics and Biomaterials, Centro Universitário UDF, Brasília, DF 70390-045, Brazil
Department of Orthodontics and Craniofacial Orthopedics, Universidade Federal de Santa Maria, Santa Maria, RS 97015-372, Brazil
Department of Children’s Clinic—Orthodontics, Universidade Estadual Paulista, Araraquara, SP 14801-903, Brazil
Author to whom correspondence should be addressed.
Dent. J. 2018, 6(3), 39;
Received: 28 June 2018 / Revised: 31 July 2018 / Accepted: 1 August 2018 / Published: 6 August 2018
(This article belongs to the Special Issue Dental Hygiene and Epidemiology)
The aim of this study was to evaluate enamel roughness, quality of the enamel surfaces and time duration comparing different orthodontic adhesive removal protocols. Premolars were used to test three adhesive removal methods (n = 20): five-blade carbide bur, 30-blade carbide bur, and ultrasonic diamond bur. Bracket was bonded using TransbondTM XT adhesive. Roughness with different parameters was measured before bracket bonding and after adhesive remnants removal. Micromorphological analysis of enamel surface (n = 5) was performed by SEM images and categorized in enamel damage index—“perfect”; “satisfying”; “imperfect”; and “unacceptable”. Time was measured in seconds. All removal methods caused increased roughness in relation to Ra, Rq, and Rz parameters (X axis) comparing to healthy enamel surface. Enamel surface resulted from removal using five-blade burs was scored as satisfactory. Carbide bur groups decreased the roughness values of Ra, Rq, and Rz parameters on the Y axis and enamel surface was considered unacceptable. The 30-blade group increased symmetry (Rsk) and flattening (Rku) parameters of roughness and surface was scored as unsatisfactory. Diamond bur removed adhesive in 54.8 s, faster than five-blade carbide bur. The five-blade bur group resulted in less enamel roughness than the 30-blade and diamond groups. View Full-Text
Keywords: dental enamel; orthodontic brackets; dental bonding; dental debonding dental enamel; orthodontic brackets; dental bonding; dental debonding
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MDPI and ACS Style

Degrazia, F.W.; Genari, B.; Ferrazzo, V.A.; Santos-Pinto, A.D.; Grehs, R.A. Enamel Roughness Changes after Removal of Orthodontic Adhesive. Dent. J. 2018, 6, 39.

AMA Style

Degrazia FW, Genari B, Ferrazzo VA, Santos-Pinto AD, Grehs RA. Enamel Roughness Changes after Removal of Orthodontic Adhesive. Dentistry Journal. 2018; 6(3):39.

Chicago/Turabian Style

Degrazia, Felipe W., Bruna Genari, Vilmar A. Ferrazzo, Ary D. Santos-Pinto, and Renésio A. Grehs. 2018. "Enamel Roughness Changes after Removal of Orthodontic Adhesive" Dentistry Journal 6, no. 3: 39.

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