PMID- 31649897 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201001 IS - 2278-1897 (Print) IS - 2278-0203 (Electronic) IS - 2278-0203 (Linking) VI - 8 DP - 2019 TI - Effects of different deproteinizing agents on topographic features of enamel and shear bond strength - An in vitro study. PG - 17 LID - 10.4103/jos.JOS_26_19 [doi] LID - 17 AB - OBJECTIVES: To evaluate and compare the effect of different enamel deproteinizing agents on topographic features of enamel and shear bond strength before acid etching. MATERIALS AND METHOD: In total, 120 sound human maxillary premolars were taken and divided into three groups: Group 1 control (37% phosphoric acid (H(3)PO(4)), Group 2, (5.25% Sodium Hypochlorite (NaOCl)+ 37% H(3)PO(4,) and Group 3, (10% Papain gel + 37% H(3)PO(4)). These groups were further divided into A and B subgroups. In subgroups 1A, 2A, and 3A (n30) topographic features were evaluated using Scanning electron microscope (SEM) at different magnifications. Insub-groups 1B, 2B, and 3B (n90) metal brackets were bonded with Transbond XT, and all the samples were subjected for Shear Bond Strength (SBS) evaluation using universal testing machineat a cross speed of 0.5 mm(2)/min. The failure mode was analyzed using adhesive remnant index (ARI). Statistical analysis was done using one-way ANOVA for the shear bond strength, and Kruskal-Wallis test followed by Mann-Whitneywas performed for ARI scores. RESULTS: SEM showed predominance of type 3 etching pattern in control Group (1A) and type 1 and type 2 in deproteinizedGroups (2A and 3A). Mean values of shear bond strength showed statistically significant differences between evaluated groups (P < 0.005). The lowest and highest shear bond strength was attributed to Group 1B (Control) and 3B (10% papain gel), respectively. Statisticallysignificant differences were noted for the mean ARI scores between control and deproteinized group (P < 0.05). CONCLUSION: 10% papain geland 5.25% NaOCl can be used as deproteinizing agents on enamel surface before acid etchingto enhance the shear bond strength of orthodontic brackets. CI - Copyright: (c) 2019 Journal of Orthodontic Science. FAU - Panchal, Santy AU - Panchal S AD - Dentalign Mutlispeciality Dental Clinic and Orthodontic Care Centre, Private Practitioner, Panipat, Haryana, India. FAU - Ansari, Akram AU - Ansari A AD - Department of Orthodontics and Dentofacial Orthopedics, Yamuna Institute of Dental Sciences, Yamuna Nagar, Haryana, India. FAU - Jain, Abhay Kumar AU - Jain AK AD - Department of Orthodontics and Dentofacial Orthopedics, Hazaribag College of Dental Sciences and Hospital, Jharkhand, India. FAU - Garg, Yogesh AU - Garg Y AD - Department of Public Health Dentistry, Surrender Dental College, Ganganagar, Rajasthan, India. LA - eng PT - Journal Article DEP - 20191004 PL - India TA - J Orthod Sci JT - Journal of orthodontic science JID - 101623468 PMC - PMC6803782 OTO - NOTNLM OT - Adhesive remnant index OT - deproteinization OT - phosphoric acid OT - scanning electron microscope OT - shear bond strength COIS- There are no conflicts of interest. EDAT- 2019/10/28 06:00 MHDA- 2019/10/28 06:01 PMCR- 2019/10/04 CRDT- 2019/10/26 06:00 PHST- 2019/10/26 06:00 [entrez] PHST- 2019/10/28 06:00 [pubmed] PHST- 2019/10/28 06:01 [medline] PHST- 2019/10/04 00:00 [pmc-release] AID - JOS-8-17 [pii] AID - 10.4103/jos.JOS_26_19 [doi] PST - epublish SO - J Orthod Sci. 2019 Oct 4;8:17. doi: 10.4103/jos.JOS_26_19. eCollection 2019.