Mebin George Mathew1, S R Samuel2, Ashu Jagdish Soni3, Korishettar Basavaraj Roopa4. 1. Department of Pediatric and Preventive Dentistry, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, 600077, India. mebingmathew@gmail.com. 2. Department of Public Health Dentistry, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, 600077, India. 3. Dr. Ashu's Dental Clinic, Vadodara, 390024, India. 4. Department of Pedodontics and Preventive Dentistry, College of Dental Sciences, Davangere, 577004, India.
Abstract
OBJECTIVE: To evaluate the adhesion of Streptococcus mutans to preformed zirconia and stainless steel crowns and compare plaque accumulation and gingival inflammation over a period of 1 year. MATERIALS AND METHODS:Thirty children between 6 to 9 years with pulpectomised bilateral mandibular primary second molars were randomly divided into zirconia/stainless steel groups. Plaque was collected from the crowns using swabs at 3, 6, 9, and 12 months. Gingival and plaque index were recorded at all follow-ups. S. mutans was cultured on tryptone-yeast-cysteine-sucrose-bacitracin agar, and organisms were expressed as colony-forming units. Within-group analysis was performed using repeated measures ANOVA and between-groups using the independent T test. RESULTS: S. mutans were found in significantly higher numbers on the stainless steel crowns as compared with zirconia crowns at all the follow-ups. Gingival inflammation and plaque index scores were also significantly higher around the stainless steel crowns as compared with zirconia at the end of 12 months follow-up. CONCLUSION:Adhesion of S. mutans to stainless steel crowns was significantly greater when compared with zirconia, and minimal gingival inflammation and plaque accumulation was found in the tooth restored with zirconia crowns as compared with stainless steel crowns. CLINICAL RELEVANCE: Preformed zirconia crowns prevents adhesion of S. mutans onto its surface, and reduces plaque accumulation around the crown, inflammation of surrounding gingiva compared to conventional stainless-steel crowns. Pediatric zirconia crowns could help in reducing the overall microbial density and prevalence in the oral cavity, thus reducing the caries risk in the long term.
RCT Entities:
OBJECTIVE: To evaluate the adhesion of Streptococcus mutans to preformed zirconia and stainless steel crowns and compare plaque accumulation and gingival inflammation over a period of 1 year. MATERIALS AND METHODS: Thirty children between 6 to 9 years with pulpectomised bilateral mandibular primary second molars were randomly divided into zirconia/stainless steel groups. Plaque was collected from the crowns using swabs at 3, 6, 9, and 12 months. Gingival and plaque index were recorded at all follow-ups. S. mutans was cultured on tryptone-yeast-cysteine-sucrose-bacitracin agar, and organisms were expressed as colony-forming units. Within-group analysis was performed using repeated measures ANOVA and between-groups using the independent T test. RESULTS:S. mutans were found in significantly higher numbers on the stainless steel crowns as compared with zirconia crowns at all the follow-ups. Gingival inflammation and plaque index scores were also significantly higher around the stainless steel crowns as compared with zirconia at the end of 12 months follow-up. CONCLUSION: Adhesion of S. mutans to stainless steel crowns was significantly greater when compared with zirconia, and minimal gingival inflammation and plaque accumulation was found in the tooth restored with zirconia crowns as compared with stainless steel crowns. CLINICAL RELEVANCE: Preformed zirconia crowns prevents adhesion of S. mutans onto its surface, and reduces plaque accumulation around the crown, inflammation of surrounding gingiva compared to conventional stainless-steel crowns. Pediatric zirconia crowns could help in reducing the overall microbial density and prevalence in the oral cavity, thus reducing the caries risk in the long term.
Authors: Mebin George Mathew; Korishettar Basavaraj Roopa; Ashu Jagdish Soni; Md Muzammil Khan; Afreen Kauser Journal: J Family Med Prim Care Date: 2020-03-26
Authors: Sara Douf Alzanbaqi; Rakan Mishaal Alogaiel; Mohammed Ali Alasmari; Ahmed Mohammed Al Essa; Layla Nizar Khogeer; Basim Salem Alanazi; Eyad Sami Hawsah; Ahmed Mohammed Shaikh; Maria Salem Ibrahim Journal: Int J Environ Res Public Health Date: 2022-02-28 Impact factor: 3.390