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A randomized controlled evaluation of posterior resin restorations of an altered resin modified glass-ionomer cement with claimed bioactivity
Umeå universitet, Medicinska fakulteten, Institutionen för odontologi.
2019 (Engelska)Ingår i: Dental Materials, ISSN 0109-5641, E-ISSN 1879-0097, Vol. 35, nr 2, s. 335-343Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

OBJECTIVE: The objective of this randomized controlled prospective clinical trial was to evaluate the short time clinical behaviour of an altered resin modified glass-ionomer cement (RMGIC), which is claimed to possess bioactivity, in posterior restorations and to compare it intraindividually with a nanofilled resin composite.

METHODS: Totally 78 pairs Class II and 4 pairs Class I restorations were placed in 29 female and 38 male participants with a mean age of 58.3 years (range 37-86). Each patient received at random at least one pair of, as similar as possible, Class II or Class I restorations. In the first cavity of each pair, the modified flowable RMGIC (ACTIVA Bioactive; AB) was placed after phosphoric acid etching of the cavity and without adhesive, according to the instructions of the manufacturer. In the other cavity a well established nanofilled resin composite (CeramX; RC) with a single step self-etch adhesive (Xeno Select) was placed. The restorations were evaluated using slightly modified USPHS criteria at baseline, 6 and 12 months. Caries risk and parafunctional habits of the participants were estimated.

RESULTS: 158 restorations, 8 Class I and 150 Class II, were evaluated at the one year recalls. At baseline two failed restorations were observed (2AB), at 6 months six failures (5AB, 1RC) and at 12 months another thirteen failed restorations were observed (12AB, 1RC). This resulted in annual failure rates of 24.1% for the AB and 2.5% for RC (p<0.0001). The main reasons for failure for AB were lost restorations (5), postoperative symptoms (4) and secondary caries (3). Do to the unacceptable very high one-year failure frequency, the clinical study was stopped and no further evaluation will be performed.

SIGNIFICANCE: The use of the AB restorative in Class II cavities, applied as instructed by the manufacturer after a short phosphoric acid pretreatment but without adhesive system, resulted in a non-acceptable very high failure frequency after a one year period. Further studies should be conducted using a bonding agent.

Ort, förlag, år, upplaga, sidor
Oxford: Elsevier, 2019. Vol. 35, nr 2, s. 335-343
Nyckelord [en]
bioactive, clinical, composite resin, glass ionomer, posterior, self etch adhesive
Nationell ämneskategori
Odontologi
Identifikatorer
URN: urn:nbn:se:umu:diva-154178DOI: 10.1016/j.dental.2018.11.027ISI: 000456070900016PubMedID: 30527586Scopus ID: 2-s2.0-85057611260OAI: oai:DiVA.org:umu-154178DiVA, id: diva2:1270341
Tillgänglig från: 2018-12-13 Skapad: 2018-12-13 Senast uppdaterad: 2019-03-29Bibliografiskt granskad

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van Dijken, Jan W. V.

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