Trial reportClinical oral investigations2020
Evaluation of adhesion of Streptococcus mutans, plaque accumulation on zirconia and stainless steel crowns, and surrounding gingival inflammation in primary molars: randomized controlled trial.
Trial report in Clinical oral investigations, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
41 citing papers in PubMed, 2 syntheses or guidelines pooled it, 482 citations in OpenAlex.
- Prefabricated zirconia crowns versus alternative full-coverage restorations for primary anterior teeth: a systematic review of clinical outcomes.European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry · 2026Pooled it
- Zirconia Crowns for Primary Teeth: A Systematic Review and Meta-Analyses.International journal of environmental research and public health · 2022Pooled it
- Clinical and radiographic performance of preformed zirconia crowns and stainless-steel crowns in permanent first molars: 18-month results of a prospective, randomized trial.BMC oral health · 2023Trial
- Comparative evaluation of hybrid resin polymer crowns versus preformed metal crowns in primary molars of children aged 3-7 years: a prospective parallel-group clinical study.European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry · 2026Article
- Comparative Evaluation of Esthetic Zirconia Crowns in Children: A Comprehensive Review.Cureus · 2025Review
- Article
- Retention of Bioflx, Zirconia, and Stainless Steel crowns using two different luting cements in primary molars: an in vitro study.BMC oral health · 2025Article
- Strategies for Restoration of Compromised First Permanent Molars in Children: Challenges and Optimal Timing.Oral health & preventive dentistry · 2025Review
- Clinical Evaluation and Parental Acceptance of Prefabricated Zirconia Crowns in Primary Maxillary Anterior Teeth.International journal of clinical pediatric dentistry · 2025Article
- Microbiological Analysis of Primary Molars Restored with Stainless Steel Crowns Compared to Healthy Molars.Microorganisms · 2025Article
- Article
- Comparison of periodontal health in children with restored primary teeth using different restorative materials.Bioinformation · 2025Article
- Adhesion ofThe Saudi dental journal · 2024Article
- Microleakage of luting cements in CAD/CAM pediatric zirconia crowns: an in vitro study.Scientific reports · 2024Article
- Efficacy evaluation of zirconia crown on primary molars with caries defects.Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology · 2024Article
- Evaluation of Microleakage Using Different Luting Cements in Kedo Zirconia Crowns: An In Vitro Assessment.Cureus · 2024Article
- Review
- Assessment of Interleukin-6 Levels andInternational journal of clinical pediatric dentistry · 2024Article
- Evaluation of Changes in Oral Microflora in Children with Early Childhood Caries after Full Mouth Rehabilitation.International journal of clinical pediatric dentistry · 2024Article
- Formulation and antibacterial properties of lollipops containing of chitosan- zinc oxide nano particles on planktonic and biofilm forms of Streptococcus mutans and Lactobacillus acidophilus.BMC oral health · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo 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
methodsThirty 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.
resultsS. 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.
conclusionAdhesion 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.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.