{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,15]],"date-time":"2026-05-15T02:30:02Z","timestamp":1778812202608,"version":"3.51.4"},"reference-count":30,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2007,8,1]],"date-time":"2007-08-01T00:00:00Z","timestamp":1185926400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Periodontology"],"published-print":{"date-parts":[[2007,8]]},"abstract":"<jats:p><jats:bold>Background:<\/jats:bold> This 6\u2010month study evaluated the effects of resin\u2010modified glass\u2010ionomer cement (RMGI) and microfilled composite (MC) subgingival restorations on periodontal tissues and subgingival biofilm.<\/jats:p><jats:p><jats:bold>Methods:<\/jats:bold> Fifty\u2010four periodontally healthy patients were assigned as follows: group 1 (N = 18), root exposure (RE) without non\u2010carious cervical lesions (NCCL) treated with coronally positioned flap (CPF); group 2 (N = 18), RE with NCCL treated RMGI restorations plus CPF; group 3 (N = 18), RE with NCCL treated with MC restorations plus CPF. Probing depth (PD), visible local plaque score (PL), and local bleeding on probing (BOP) were assessed at baseline and 6 months after surgeries. Restored and non\u2010restored root recoverage (RR) was assessed at 6 months. Each experimental tooth was subgingivally sampled (baseline and 6 months) and analyzed by checkerboard DNA\u2010DNA hybridization.<\/jats:p><jats:p><jats:bold>Results:<\/jats:bold> Clinical results showed no significant differences among the groups regarding PL, BOP, and PD at baseline and 6 months. The RR means were similar among the groups at 6 months. Intragroup analyses revealed that the proportions of 10 periodontopathogens decreased at 6 months for the control group. For the RMGI group, there was a significant decrease in the proportions of nine periodontopathogens. For the MC group, there was a significant increase in the proportions of <jats:italic>Fusobacterium nucleatum polymorphum<\/jats:italic> and <jats:italic>Gemella morbillorum<\/jats:italic> and a decrease in five periodontopathogens. Intergroup analyses showed an increase in the proportion of <jats:italic>F. nucleatum polymorphum<\/jats:italic> for the MC group.<\/jats:p><jats:p><jats:bold>Conclusions:<\/jats:bold> In a 6\u2010month evaluation, well\u2010finished RMGI or MC subgingival restorations did not negatively affect periodontal health. Furthermore, RMGI seems to exert more positive effects on the subgingival biofilm composition than MC.<\/jats:p>","DOI":"10.1902\/jop.2007.070032","type":"journal-article","created":{"date-parts":[[2007,8,1]],"date-time":"2007-08-01T09:22:59Z","timestamp":1185960179000},"page":"1522-1528","source":"Crossref","is-referenced-by-count":41,"title":["Effects of Glass Ionomer and Microfilled Composite Subgingival Restorations on Periodontal Tissue and Subgingival Biofilm: A 6\u2010Month Evaluation"],"prefix":"10.1002","volume":"78","author":[{"given":"Vanessa Renata","family":"Santos","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Juliana Antico","family":"Lucchesi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sheila Cavalca","family":"Cortelli","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cristiane 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