10 research outputs found
Two-year clinical evaluation of three adhesive systems in non-carious cervical lesions
OBJECTIVES: Adhesive systems are continuously being introduced to Dentistry, unfortunately often without sufficient clinical validation. The aim of this study was to evaluate the clinical performance of cervical restorations done with three different adhesive systems. MATERIAL AND METHODS: 158 non-carious cervical lesions of 23 patients were restored with a nanofilled composite resin (Filtek Supreme, 3M/ESPE) combined with Single Bond (3M/ESPE, group SI), Clearfil SE (Kuraray Medical Inc., group CL) and Xeno III (De Trey Dentsply, group XE). In groups SI-B, CL-B and XE-B, the outer surface of the sclerotic dentin was removed by roughening with a diamond bur before application of the respective adhesive systems. In groups CL-BP and XE-BP, after removal of the outer surface of the sclerotic dentin with the bur, the remaining dentin was etched with 37% phosphoric acid and the self-etch adhesive systems Clearfil SE and Xeno III were applied, respectively. Lesions were evaluated at baseline, and restorations after 3 months, 1 year and 2 years using modified USPHS criteria. RESULTS: After 2 years, no significant difference was found between the retention rates of the groups (p >0.05). Although groups CL and SI showed significantly better marginal adaptation than group XE (
Clinical evaluation of combined surgical/restorative treatment of gingival recession-type defects using different restorative materials: A randomized clinical trial
WOS: 000435150500004PubMed ID: 30895090Background/purpose: An ideal therapeutic procedure for the treatment of gingival recession associated with an NCCL has presented a challenge to clinicians. Various dental materials and surgical approaches have been used to manage gingival recessions associated with NCCLs for the most predictable combined surgical/restorative treatment. The objective of this study was to evaluate the treatment of gingival recessions associated with non-carious cervical lesions (NCCL) using a modified coronally advanced flap (MCAF) in combination with a connective tissue graft (CTG) on restored root surfaces. Materials and methods: Twenty-three systemically healthy subjects, who were positive for the presence of three cervical lesions associated with gingival recessions in three different adjacent teeth, were enrolled in the study. The NCCL were each restored prior to surgery by using one of three different materials: nanofilled composite resin (NCR), resin-modified glass ionomer cement (RMGI) or giomer. The gingival recession defects were treated by CTG. Results: Inter-group differences were not statistically significant for probing depth (PD), relative recession height (rRH), relative clinical attachment level (rCAL), keratinized tissue width (KTW) or keratinized tissue thickness (KTT) (p > 0.05) among the groups at any time. The mean percentage of defect coverage was 71.18 +/- 23.16% for NCR + CTG group; 71.33 +/- 22.33% for RMGI CTG group; and 64.23 +/- 20.33% for giomer CTG group at 1 year postoperatively (p > 0.05). Conclusion: The combined surgical/restorative treatments provided successful clinical results. Giomer CTG may be less effective compared to other groups for treatment of gingival recession associated with NCCL. (C) 2018 Taiwan Association of Obstetrics & Gynecology. Publishing services by Elsevier B.V
Clinical evaluation of combined surgical/restorative treatment of gingival recession-type defects using different restorative materials: A randomized clinical trial
Background/purpose: An ideal therapeutic procedure for the treatment of
gingival recession associated with an NCCL has presented a challenge to
clinicians. Various dental materials and surgical approaches have been
used to manage gingival recessions associated with NCCLs for the most
predictable combined surgical/restorative treatment. The objective of
this study was to evaluate the treatment of gingival recessions
associated with non-carious cervical lesions (NCCL) using a modified
coronally advanced flap (MCAF) in combination with a connective tissue
graft (CTG) on restored root surfaces.
Materials and methods: Twenty-three systemically healthy subjects, who
were positive for the presence of three cervical lesions associated with
gingival recessions in three different adjacent teeth, were enrolled in
the study. The NCCL were each restored prior to surgery by using one of
three different materials: nanofilled composite resin (NCR),
resin-modified glass ionomer cement (RMGI) or giomer. The gingival
recession defects were treated by CTG.
Results: Inter-group differences were not statistically significant for
probing depth (PD), relative recession height (rRH), relative clinical
attachment level (rCAL), keratinized tissue width (KTW) or keratinized
tissue thickness (KTT) (p > 0.05) among the groups at any time. The mean
percentage of defect coverage was 71.18 +/- 23.16\% for NCR + CTG group;
71.33 +/- 22.33\% for RMGI CTG group; and 64.23 +/- 20.33\% for giomer
CTG group at 1 year postoperatively (p > 0.05).
Conclusion: The combined surgical/restorative treatments provided
successful clinical results. Giomer CTG may be less effective compared
to other groups for treatment of gingival recession associated with
NCCL. (C) 2018 Taiwan Association of Obstetrics \& Gynecology.
Publishing services by Elsevier B.V
Investigation of eluted monomers from resin-based root canal sealer by high-performance liquid chromatography analysis.
The purpose of the current study was to determine the amount of urethane dimethacrylate (UDMA), bisphenol A-glycidyl methacrylate (Bis-GMA), poly (ethylene glycol) dimethacrylate (PEGDMA), bisphenol A ethoxylated dimethacrylate (Bis-EMA), and 2-hydroxyethyl methacrylate (HEMA) eluted from resin-based root canal sealer, epiphany, using high-performance liquid chromatography (HPLC)
Volumetric Evaluation of Void/Gap Formation and Microleakage Cementing Fiber Posts on Extracted Teeth with Three Different Cements
Purpose To evaluate microleakage in roots restored with fiber posts
cemented using three different luting cements, to measure the volume of
voids/gaps within the obturated/postcemented root canals, and to examine
whether microleakage and the volume of voids/gaps were correlated.
Materials and Methods Thirty-six extracted human mandibular incisors
were decoronated, and the root canals were obturated using gutta-percha
and sealer in the experimental groups (n = 30). Six roots were used as
controls. A standard post space was prepared, and an identically sized
fiber post was cemented in each experimental specimen using one of three
luting cements (Panavia F2.0, Bifix SE, GC FujiCEM; n = 10 each). The
specimens were scanned using micro-computed tomography, and the volume
of voids/gaps was determined. The specimens were then subjected to a
fluid filtration assay to evaluate microleakage. Results The volume of
voids/gaps was significantly lower in the GC FujiCEM group, and
significantly less microleakage occurred in the Bifix SE group compared
with other groups (both p < 0.001). A significant correlation between
the volume of voids/gaps and leakage was found only in the Panavia F2.0
group (p = 0.003; r = 0.830). No such correlation was found in the
analysis of all groups combined. Conclusions The group with the greatest
volume of voids/gaps (Bifix SE) showed the least microleakage, and the
group with the smallest volume of voids/gaps (GC FujiCEM) showed the
most microleakage. Panavia F2.0 ranked between and exhibited significant
correlation