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Showing 1-20 of 27 trials
NCT03343184
Treatment clinical trial, randomized, controled, parallel, double-blinded, with four groups, that aims to evaluate the best application strategy when using a Universal Adhesive system, Single Bond Universal (3M ESPE, USA), in self-etch application mode, with or without enamel etching, associated wity a Bulk Fill Composite (Filtek Bulk Fill, 3M ESPE, USA), or with a conventional nanofilled composite (Filtek Z350 XT, 3M ESPE). Volunteers will be selected and recruited,following inclusion criteria and pre-established exclusion. All volunteers will be informed and sign a term of clarification and consent. 50 enrolled patients will receive 200 Class I or Class II dental restorations, made in four different ways, one from each experimental group, using the same universal self-etching adhesive system, with two application strategies, under the restorations that will use two different composites, a bulk fill composite, used in the bulk strategy, or a nanofilled composite, used in the traditional incremental strategy. Occlusal or Proximo-occlusal lesions will receive the selected adhesive system in 2 different protocols separated by groups. Group Self Etching and Bulk Fill (SETB), Group Selective enamel etching and Bulk Fill (SEEB), Group Self Etching and Filtek Z350XT (SETI), and Group Selective enamel etching and Filtek Z350XT (SEEI).Total time used in the restorations will be evaluated during the restorations. Immediate post-operative tooth sensitivity will be evaluated after one week. Restorations will be evaluated every 6 months for pain assessment, shape, fractures, staining or recurrent caries, using scores. To determine in which group each tooth will be enrolled, the authors will randomize the teeth.
NCT06183320
Treatment clinical trial, randomized, controlled, parallel, double-blinded, with two groups, that aims to evaluate the best application strategy when using a flowable bulk fill composite (Opus Bulk Fill Flow APS, FGM, Brazil) in class II cavities. Volunteers will be selected and recruited, following inclusion criteria and pre-established exclusion criteria. All volunteers will be informed and sign a term of clarification and consent. 38 enrolled patients will receive 76 Class II dental restorations, made in two different ways, one from each experimental group. Authors will perform restorations with an incremental composite (Vittra APS - FGM) associated with a bulk-fill flowable composite (Opus Bulk Fill Flow APS - FGM), in class II cavities, exposing (Group BP) or not (Group IP) the bulk fill flowable composite to the cavosurface angle on the proximal wall of the restorations. In both groups, Opus Bulk Fill Flow APS resin will be used in the bulk technique with up to 5mm depth increments, leaving 1 mm in the occlusal for incremental Vittra APS composite resin. Immediate post-operative tooth sensitivity will be evaluated after one week. Restorations will be evaluated every 6 months for pain assessment, shape, fractures, staining or recurrent caries, using FDI scores. To determine in which group each tooth will be enrolled, the authors will randomize the teeth.
NCT07128589
This clinical study aims to evaluate the clinical performance of 3M™ Filtek™ Supreme Flowable Composite in class IV and veneer indication. Follow-ups of 7 days, 6, 12, and 24 months will be conducted following an Fédération Dentaire Internationale (FDI) modified score (2023). A minimum of 50 Class IV and 25 veneers will be included in the evaluation. Research data and pictures will be provided for each patient pre-op and at 7 days (baseline, 6 months, 12 months and 24 months. Evaluation will be conducted by two calibrated evaluators different from the operator according to FDI clinical criteria.
NCT07309653
The goal of this observational study is to evaluate the clinical performance of a single-shade composite resin, used with an injection moulding technique, in restoring maxillary incisors affected by traumatic dental injury in patients aged 6-15 years. The main questions it aims to answer are: * How well does a single composite resin colour match the natural tooth? * How stable is the colour over a 6- and 12-month follow-up? * How satisfied are the children and parents with the restoration?
NCT07265609
This study was designed to evaluate and compare the 2-year clinical performance of two different resin-matrix ceramic inlays
NCT06615544
The overall aim of this study is to evaluate the clinical performance and safety of the new dental dual-cure adhesive for luting indirect ceramic restorations (inlays and onlays). The primary aim is to determine the rate of postoperative hypersensitivity occurrence after using the new adhesive for the placement of indirect restorations. The secondary objective of this study is to assess the long-term clinical performance of the new adhesive in terms of marginal quality, retention/fracture rate of the ceramic restorations, and vitality/fracture rate of the restored teeth.
NCT03244124
Treatment clinical trial, randomized, controled, parallel, double-blinded, with four groups, that aims to evaluate the best application strategy when using a new Universal Adhesive system, Futurabond Universal (VOCO GmbH, Germany). Volunteers will be selected and recruited,following inclusion criteria and pre-established exclusion. All volunteers will be informed and sign a term of clarification and consent. 50 enrolled patients will receive 200 Class V dental restorations, made in four different ways, one from each experimental group, using the same universal self-etching adhesive system, which is the tested material in this study. Non-carious cervical lesions will receive the applied adhesive system in 4 different protocols separated by groups. Group Self Etching (SET) (control): no conditioning, the adhesive system will be used in 50 teeth, according to the manufacturer's instructions, in the self-etching mode. The adhesive system will be brushed during 20 seconds in the cavity, will be air-dried during 5 seconds, and activated during 10 seconds with Light Emission Diode (LED) light; Group SEE (Selective enamel etching): 37% phosphoric acid will be applied during 30 seconds, only in enamel in 50 teeth. This acid will be removed using water, the cavity will be air-dried, and then, the adhesive will be applied according to the manufacturer's instructions, as described in group SET; Group ERDry (Etch\& Rinse Dry): 37% phosphoric acid will be applied during 30 seconds, only in enamel and during 15 seconds only in dentin, in 50 teeth. This acid will be removed using water, the cavity will be air-dried, keeping dentin dry, and then, the adhesive will be applied according to the manufacturer's instructions, as described in group SET; Group ERWet (Etch\& Rinse Wet): 37% phosphoric acid will be applied during 30 seconds, only in enamel and during 15 seconds only in dentin, in 50 teeth. This acid will be removed using water, the cavity will be air-dried, keeping dentin wet, and then, the adhesive will be applied according to the manufacturer's instructions, as described in group SET. After applying the adhesive, the restorations will be made with composite resin, and evaluated every 6 months for pain assessment, shape, staining or recurrent caries, using scores. To determine in which group each tooth will be enrolled, the authors will randomize the teeth.
NCT06417632
To compare biological, technical, radiographic, and patient-reported outcomes of two types of monolithic zirconia crowns screw-retained to implant. To assess whether the new form of multilayered zirconia crowns will show similar survival and success rate to conventional monolithic Zirconia screw-retained to implants in molar and premolar regions. First Null Hypothesis: Multilayered monolithic zirconia crowns would have similar survival, success rate compared to conventional monolithic zirconia implant supported crowns. Second Null hypothesis: There would be no difference in clinical and patients related outcomes between multilayered and conventional monolithic zirconia implant supported crowns.
NCT06500546
The study will involve 41 people who regularly seek treatment at clinics. Participants must be in generally good health and be older than eighteen. must have at least 20 teeth in an occlusion and maintain appropriate dental hygiene. They have to be treated for a minimum of four non-cancerous cervical lesions in their mouths.Four non-carious cervical lesions from patients will be separated into four groups, and adhesive material will be applied to the lesions in each group using different procedures. Evaluation will be performed based on World Dental Federation (FDI) criteria after initial, ½, 1, 2, 3, 4, and 5 years.
NCT06450093
This study will be conducted to: Evaluate and compare the clinical success, periodontal changes, and wear of antagonist teeth for three types of prefabricated crowns in primary molars: BioFlx crowns, Zirconia crowns, and Stainless Steel crowns.
NCT06273410
Despite significant advances in composite materials, they are still perceived as technique-sensitive and exhibit failure related to excessive wear and polymerization shrinkage. Cention N is a recently introduced alkasite restorative that contains special reactive fillers. Its application in restorative dentistry may be significant, promoting remineralization of carious lesions \& reduction of polymerization shrinkage. The study will aim to compare the clinical performance of Cention N (with and without adhesive) and composite resin (Filtek Bulk Fill) in class I restorations using FDI criteria. Thirty-six class I cavities will be selected and equally allocated into 3 groups: Group I (n=12): (Cention N with adhesive), Group II (n=12): (Cention N without adhesive) \& Group III (n=12): composite resin (Filtek Bulk Fill) in class I cavities. Patients will be followed up at 1 week 3, 6, and 12 months and evaluated using the FDI criteria. Postoperative sensitivity, staining, and recurrent caries will be evaluated in this clinical trial.
NCT02948686
Treatment clinical trial, randomized, controled, parallel, double-blinded, with four groups, that aims to evaluate the best application strategy when using a new Universal Adhesive system, Ambar Universal (FGM, Joinville, Brazil). Volunteers will be selected and recruited,following inclusion criteria and pre-established exclusion. All volunteers will be informed and sign a term of clarification and consent. 38 enrolled patients will receive four Class V dental restorations, made in four different ways, one from each experimental group, using the same universal self-etching adhesive system, which is the tested material in this study. Non-carious cervical lesions will receive the applied adhesive system in 4 different protocols separated by groups. Group Self Etching (SET) (control): no conditioning, the adhesive system will be used in 55 teeth, according to the manufacturer's instructions, in the self-etching mode. The adhesive system will be brushed during 10 seconds in the cavity, will be air-dried during 5 seconds, brushed again during 10 seconds, air-dried during 10 seconds and activated during 10 seconds with Light Emission Diode (LED) light; Group SEE (Selective enamel etching): 37% phosphoric acid will be applied during 15 seconds, only in enamel in 55 teeth. This acid will be removed using water, the cavity will be air-dried, and then, the adhesive will be applied according to the manufacturer's instructions, as described in group SET; Group SETT (Self-Etching with extended time): Similar to Group SET, but during the 2 applications, the adhesive systems will be brushed during 20 seconds, and not during 10 seconds as described in Group SET; Group SETL (Self-Etching with extended number of layers): The adhesive system will be applied as describe in Group SET, but the researchers will apply 4 layers, and not 2 layers, as described in Group SET. After applying the adhesive, the restorations will be made with composite resin, and evaluated every 6 months for pain assessment, shape, staining or recurrent caries, using scores. To determine in which group each tooth will be enrolled, the authors will randomize the teeth.
NCT05551481
Objective: To evaluate the clinical performance of indirect resin composite restorations, which were luted with two different resin cement, in posterior teeth for up to 2 years. Methods: From February 2017 to May 2017, a total of 43 patients (21 men, 22 women; mean age.), received 48 onlay restorations made of laboratory-processed indirect composite (Gradia, GC, Japan). 27 onlay restorations (Group A) were luted using an etch and rinse resin cement (Variolink II, Ivoclar Vivadent) and 22 onlay restorations (Group B) were luted using a self-adhesive resin cement (Relyx U200, 3M ESPE). Patients were followed until May 2019. Two independent calibrated examiners evaluated the restorations at 3-time points: 2 weeks after placement (baseline), 6 months, and then annually, using the modified USPHS/FDI criteria.
NCT05556551
Clinical performance of two different ceramic restoration in patient mouth after 3 years follow up
NCT05499494
The aim of the study is to evaluate the clinical performance of new bioactive injectable composite compared to nanohybrid composite during the restoration of posterior cavities
NCT03854526
The purpose of this study is to provide the latest information on the oral health status of patients, the lifetime of restorations, to quantify the incidence of defects rates on inserted restorations in conservative dentistry. Moreover, the study permits to compare needs of two different patient populations depending on the place of consultation (those consulting in hospital services and those consulting in private structures) and to compare the quality of coronary fillings in patients with of Gougerot Sjogren disease and those not affected. A minimum sample of 840 adult subjects consecutively seen at the investigator's office over a period of 33 months is expected ; 400 subjects included in private structures and 440 subjected included in university hospital services (8 to 15 patients per investigator), including at least 40 patients with Gougerot Sjogren disease (disease prevalence = 0.1%). The investigators of these study are 46 dentists working in private dental practices or private structures of dental care spread over the " Ile-de-France " and " Rhône-Alpes Auvergne " régions and 43 dentists working in 13 french university hospital services in odontology, including two hosting one consultation for Gougerot Sjogren disease, from the ReCOL network (Recherche Clinique en Odontologie Libérale).
NCT03582657
A multicenter prospective observational study in which aim is to illustrate the clinical outcome of dental implants "Kontact N"; and the effects of its nanostructured surface on the osseointegration and secondary stability without increasing the rate of peri-implantitis. All the enrolled patients will be eligible for one or multiple implant-supported fixed restoration(s) according to the routine clinical practice and the manufacturer's instruction for use.
NCT02957734
LAVA Ultimate composite restorations will be used as restorative material to reconstruct severely worn dentitions.
NCT04838483
Clinical performance of indirect adhesive restorations - onlays, overlays- luted with light-cured composite resin will be evaluated.
NCT04326816
This study compares the survival rates of both direct and indirect resin-based composite restorations in the treatment of severe tooth wear.