The One-Year In Vivo Comparison of Lithium Disilicate and Zirconium Dioxide Inlays

The objective of the present study was to evaluate the one-year clinical performance of lithium disilicate (LD) and zirconium dioxide (ZrO2) class II inlay restorations. Thirty healthy individuals who met the inclusion criteria were enrolled for the study. The patients were randomly divided into two study groups (n = 15): LD (IPS e.max press) and ZrO2 (Dentcare Zirconia). In the ZrO2 group, the internal surfaces of the inlays were sandblasted and silanized with Monobond N (Ivoclar, Leichsteistein, Germany). In the LD group, the internal surfaces of the inlays were etched with 5% hydrofluoric acid. The ceramic inlays were cemented with self-cure resin cement (Multilink N). Clinical examinations were performed using modified United State Public Health Codes and Criteria (USPHS) after 2 weeks, 4 weeks, 6 months and 1 year. The one-year survival rate was evaluated. In total, one failure was observed in the ZrO2 group. The survival probability after 1 year for the ZrO2 inlays was 93%, and for the LD inlays was 100%, which was statistically insignificant. The differences between both groups for most USPHS criteria (except for colour match) were statistically insignificant. Within the imitations of the present study, the lithium disilicate- and zirconia dioxide-based inlays exhibited comparable clinical performances. However, the colour and translucency match was superior for the lithium disilicate restorations.

Download Full-text

One-Year Clinical Evaluation of the Bonding Effectiveness of a One-Step, Self-Etch Adhesive in Noncarious Cervical Lesion Therapy

International Journal of Dentistry ◽

10.1155/2015/984065 ◽

2015 ◽

Vol 2015 ◽

pp. 1-5 ◽

Cited By ~ 4

Author(s):

Babacar Faye ◽

Mouhamed Sarr ◽

Khaly Bane ◽

Adjaratou Wakha Aidara ◽

Seydina Ousmane Niang ◽

...

Keyword(s):

Clinical Performance ◽

Retention Rate ◽

Recall Rate ◽

Acid Etching ◽

Significant Difference ◽

Usphs Criteria ◽

One Step ◽

One Year ◽

The One ◽

Self Etch

This study evaluated the one-year clinical performance of a one-step, self-etch adhesive (Optibond All-in-One, Kerr, CA, USA) combined with a composite (Herculite XRV Ultra, Kerr Hawe, CA, USA) to restore NCCLs with or without prior acid etching. Restorations performed by the same practitioner were evaluated at baseline and after 3, 6, and 12 months using modified USPHS criteria. At 6 months, the recall rate was 100%. The retention rate was 84.2% for restorations with prior acid etching, but statistically significant differences were observed between baseline and 6 months. Without acid etching, the retention rate was 77%, and no statistically significant difference was noted between 3 and 6 months. Marginal integrity (93.7% with and 87.7% without acid etching) and discoloration (95.3% with and 92.9% without acid etching) were scored as Alpha or Bravo, with better results after acid etching. After one year, the recall rate was 58.06%. Loss of pulp vitality, postoperative sensitivity, or secondary caries were not observed. After one year retention rate was of 90.6% and 76.9% with and without acid conditioning. Optibond All-in-One performs at a satisfactory clinical performance level for restoration of NCCLs after 12 months especially after acid etching.

Download Full-text

Clinical Evaluation of Reduced-Thickness Monolithic Lithium-Disilicate Crowns: One-Year Follow-Up Results

Processes ◽

10.3390/pr9122119 ◽

2021 ◽

Vol 9 (12) ◽

pp. 2119

Author(s):

Davor Špehar ◽

Marko Jakovac

Keyword(s):

Survival Rate ◽

United States Public Health ◽

Lithium Disilicate ◽

Good Alternative ◽

Double Blind ◽

Invasive Approach ◽

Less Invasive Approach ◽

Ceramic Crowns ◽

One Year

Purpose: The purpose of this in vivo study was to investigate whether the less invasive approach (reduced thickness of the restoration) will result in a comparable risk of failure and similar aesthetic results, compared to conventional layered full porcelain crowns, and can, therefore, be used as a good alternative. Material and Methods: The tested ceramic was lithium-disilicate ceramic (IPS e.max). Forty-four patients with endodontically treated premolars or molars were randomized into two groups and provided with single crowns. One group received conventional all-ceramic crowns made from a lithium-disilicate core and hand-veneered aesthetic ceramic, while another group received full-contoured lithium-disilicate ceramic crowns with reduced wall thickness than manufactures recommendations. The teeth for conventional crowns were prepared with 1 mm rounded shoulder and 2 mm occlusal reduction, while teeth for monolithic crowns were prepared with 0.6 mm wide rounded shoulder and 1 mm occlusal reduction. All crowns were prepared by the same clinician and manufactured in the same laboratory by the same technician. The survival and aesthetics of the crowns were assessed by the independent clinician. Apart from this, patients’ aesthetic satisfaction was evaluated. The assessment was double blind as both the examiner and the patients did not know which type of crown was provided. The observation period was 36 months. Survival of the crowns was assessed using the modified United States Public Health Service (USPHS) criteria and aesthetics and participants’ aesthetic satisfaction with the crowns was evaluated using a visual analogue scale. Results: The one-year survival rate for layered crowns was 100% and for monolithic crowns 95.5%. The median patients’ aesthetic satisfaction with both crowns was 100%. Conclusions: The results indicate similar one-year survival rate of reduced-thickness monolithic lithium-disilicate crowns and conventional veneered crowns. Differences with patients’ satisfaction with the aesthetics of both crowns were not statistically significant and it can be said that the patients’ aesthetic satisfaction was the same for both crowns.

Download Full-text

Repair of Dimethacrylate-Based Composite Restorations by a Silorane-Based Composite: A One-Year Randomized Clinical Trial

Operative Dentistry ◽

10.2341/11-121-c ◽

2012 ◽

Vol 37 (5) ◽

pp. E13-E22 ◽

Cited By ~ 6

Author(s):

DAV Popoff ◽

TTA Santa Rosa ◽

RC Ferreira ◽

CS Magalhães ◽

AN Moreira ◽

...

Keyword(s):

Clinical Trial ◽

Composite Resin ◽

Clinical Performance ◽

Controlled Clinical Trial ◽

Shrinkage Stress ◽

Clinical Criteria ◽

Composite Restorations ◽

Composite Resin Restorations ◽

One Year ◽

The One

SUMMARY Purpose To investigate clinical performance of a low-shrinkage silorane-based composite resin when used for repairing conventional dimethacrylate-based composite restorations. Background Despite the continued development of resin-based materials, polymerization shrinkage and shrinkage stress still require improvement. A silorane-based monomer system was recently made available for dental restorations. This report refers to the use of this material for making repairs and evaluates the clinical performance of this alternative treatment. Materials and Methods One operator repaired the defective dimethacrylate-based composite resin restorations that were randomly assigned to one of two treatment groups: control (n=50) repair with Adper SE Plus (3M/ESPE) and Filtek P60 Posterior Restorative (3M/ESPE), and test (n=50) repair with P90 System Adhesive Self-Etch Primer and Bond (3M/ESPE) and Filtek P90 Low Shrink Posterior Restorative (3M/ESPE). After one week, restorations were finished and polished. Two calibrated examiners (Kw≥0.78) evaluated all repaired restorations, blindly and independently, at baseline and one year. The parameters examined were marginal adaptation, anatomic form, surface roughness, marginal discoloration, postoperative sensitivity, and secondary caries. The restorations were classified as Alpha, Bravo, or Charlie, according to modified US Public Health Service criteria. Mann-Whitney and Wilcoxon tests were used to compare the groups. Results Of the 100 restorations repaired in this study, 93 were reexamined at baseline. Dropout from baseline to one-year recall was 11%. No statistically significant differences were found between the materials for all clinical criteria, at baseline or at one-year recall (p>0.05). No statistically significant differences were registered (p>0.05) for each material when compared for all clinical criteria at baseline and at one-year recall. Conclusions The hypothesis tested in this randomized controlled clinical trial was accepted. After the one-year evaluations, the silorane-based composite exhibited a similar performance compared with dimethacrylate-based composite when used to make repairs.

Download Full-text

Survival of Hybrid Laminate Veneers using two different tooth preparation techniques: Randomized Clinical Trial

Brazilian Dental Journal ◽

10.1590/0103-6440202103907 ◽

2021 ◽

Vol 32 (6) ◽

pp. 36-53

Author(s):

Yara Sayed Attia ◽

Rana Mahmoud Sherif ◽

Hanaa Hassan Zaghloul

Keyword(s):

Clinical Performance ◽

United States Public Health ◽

Study Groups ◽

Resin Cement ◽

Color Match ◽

Traditional Technique ◽

Cad Cam ◽

Tooth Preparation ◽

Laminate Veneers ◽

Preparation Techniques

Abstract The aim of this study was to evaluate the survival of laminate veneers constructed using a recent polymer-infiltrated ceramic network material following the aesthetic pre-evaluative temporary (APT) technique of tooth preparation in comparison to traditional technique. Six patients received 54 laminate veneers. They were divided into two equal groups (n=27) according to the technique of tooth preparation: group T: traditional technique and group A: aesthetic pre-evaluative temporary technique. VITA ENAMIC material was used for CAD/CAM construction of laminate veneers. Cementation was performed using a light cured resin cement. The laminate veneers were evaluated at baseline, after 3, 6 and 12 months according to the modified United States Public Health Service (USPHS) criteriea. The data was collected, tabulated and statistically analyzed. Secondary caries, endodontic complications, cracks and loss of retention were not noted in any laminate veneer. Extensive fractures were not detected in both study groups through the study period. There was a statistically significant decrease of color match criteria between the two groups at the 6 and 12 months recalls. Based on this study, both preparation techniques resulted in successful clinical performance. After 12 months, all the veneers in both groups showed no post-operative sensitivity and all patients were highly satisfied regarding their veneers. However, there was a deterioration in color match criteria through the study period in both study groups.

Download Full-text

Porcelain Inlays Cemented with Composite Resin Cement: An In Vivo Investigation of Pulpal Reaction One Year Following Cementation

Journal of Prosthodontics ◽

10.1111/j.1532-849x.2007.00177.x ◽

2007 ◽

Vol 16 (2) ◽

pp. 123-128

Author(s):

Paolo Vigolo ◽

Lorenzo Graiff ◽

Sabrina Mutinelli ◽

Fulvio Fonzi

Keyword(s):

Composite Resin ◽

Resin Cement ◽

One Year

Download Full-text

One-year clinical performance of lithium disilicate versus resin composite CAD/CAM onlays

Odontology ◽

10.1007/s10266-020-00539-3 ◽

2020 ◽

Vol 109 (1) ◽

pp. 259-270

Author(s):

Joana Souza ◽

Mª Victoria Fuentes ◽

Eugenia Baena ◽

Laura Ceballos

Keyword(s):

Clinical Performance ◽

Resin Composite ◽

Oral Care ◽

Lithium Disilicate ◽

Biological Properties ◽

Color Match ◽

Posterior Teeth ◽

Cad Cam ◽

One Year

AbstractTo compare the 1-year clinical performance of lithium disilicate and resin composite CAD/CAM onlay restorations. Twenty patients that required two restorations in posterior teeth, with at least one cusp to be covered, received two onlays. One was made with IPS e.max CAD (Ivoclar-Vivadent) and the other with Lava Ultimate (3M Oral Care). Two blind observers evaluated the restorations at baseline and 1 year after the onlays were cemented, according to FDI criteria. At each recall, digital photographs, bite-wing radiographs and impressions of the restorations were taken for SEM evaluation of the interface. Results were analyzed by Mann–Whitney U and Wilcoxon tests (p < 0.05). At baseline and in the 1-year recall, both CAD/CAM materials exhibited excellent results in most criteria with similar esthetic, functional and biological properties (p > 0.05). However, deterioration in surface lustre (p = 0.020) and color match/translucency (p = 0.039) were detected for IPS e.max CAD onlays after 1-year. Under SEM evaluation, there were no statistically differences in micromorphological criteria at baseline nor after a year between IPS e.max CAD and Lava Ultimate onlays. Conclusion: After 1 year of clinical service IPS e.max CAD and Lava Ultimate onlays showed a similar clinical performance that needs to be confirmed in long-term evaluations.

Download Full-text

Clinical Evaluation of a Low-shrinkage Composite in Posterior Restorations: One-Year Results

Operative Dentistry ◽

10.2341/11-179-c ◽

2012 ◽

Vol 37 (2) ◽

pp. 117-129 ◽

Cited By ~ 27

Author(s):

B Baracco ◽

J Perdigão ◽

E Cabrera ◽

I Giráldez ◽

L Ceballos

Keyword(s):

Clinical Performance ◽

Clinical Success ◽

United States Public Health ◽

The United States ◽

Marginal Adaptation ◽

Etch And Rinse ◽

One Year ◽

The One ◽

Statistical Change ◽

Self Etch

SUMMARY Objectives The aim of this study was to compare the one-year clinical performance of three restorative systems, which included a novel low-shrinkage composite and two bonding strategies. Materials and Methods Twenty-five patients received three Class I (occlusal) or Class II restorations performed with one of three restorative systems: Filtek Silorane Restorative System (FS); Adper Scotchbond 1 XT, a two-step etch-and-rinse adhesive, with Filtek Z250 (XT); and Adper Scotchbond SE, a two-step self-etch adhesive, with Filtek Z250 (SE). All materials were applied following the manufacturer's instructions. Two independent observers evaluated the restorations at baseline, after six months, and after one year, according to the United States Public Health System modified criteria. The Kruskal-Wallis test and the Mann-Whitney U-test were computed to compare the behavior of the restorative systems; Friedman and Wilcoxon tests were used to analyze the intrasystem data (α=0.05). Results All restorations were evaluated at one year. FS and XT performed statistically similarly at one year, but marginal staining for SE was statistically worse. Intrasystem comparisons between baseline and one year also showed deterioration of marginal staining for SE, while a deterioration of the marginal adaptation was recorded for both SE and FS. XT was the only system for which there was no statistical change of the parameters measured in this study. Conclusions Both restorative systems using self-etch adhesives showed a tendency to degradation of marginal adaptation after one year of clinical use, compared to baseline values. Although the clinical performance of FS was deemed acceptable after one year, this study did not find any advantage of the silorane-based composite over the methacrylate-based composite. The low-shrinkage associated with FS may not be a determinant factor for clinical success.

Download Full-text

Treatment of advanced-stage ovarian cancer including combination of intra-abdominal chemotherapy

Уральский медицинский журнал ◽

10.52420/2071-5943-2021-20-2-28-35 ◽

2021 ◽

Vol 20 (2) ◽

pp. 28-35

Author(s):

V. V. Saevets ◽

A. V. Privalov ◽

A. V. Vazhenin ◽

Y. A. Semenov ◽

A. V. Shmidt

Keyword(s):

Ovarian Cancer ◽

Survival Rate ◽

Abdominal Cavity ◽

Relative Survival ◽

Study Groups ◽

Stage Iiia ◽

Results Of Treatment ◽

Significant Difference ◽

One Year ◽

The One

Introduction. Ovarian cancer is the leading cause of death from gynecological malignancies: the one-year relative survival rate with stages 3 and 4 of the disease is 20%. The results of treatment remain unsatisfactory, which dictates the need to find new methods of treatment. The aim of the study was to evaluate the effectiveness of the use of HIIH (hyperthermic intraperitoneal intraoperative chemoperfusion, HIPEC) in patients with the diagnosis of: ovarian cancer IIIA-From the stage of the disease.Materials and methods. 117 cases of stage IIIA-C ovarian cancer treated at the Chelyabinsk Regional Clinical Center of Oncology and Nuclear Medicine from January 2014 to March 2021 were retrospectively studied. All patients underwent 3 cycles of neoadjuvant chemotherapy (NAPHT) according to the paclitaxel+carboplatin (PCb) scheme, followed by surgical treatment to the extent of maximum cytoreductive surgery. Two study groups were formed: 1 — cases with GIIH (N=57), 2-without GIIH (N=60). On the 14-16 day after the operation, all patients underwent 3 cycles of adjuvant chemotherapy according to the PCb scheme.Results. A significant increase in overall survival was found in the first group of patients with HIPEC. This technique allows to increase the survival rate of patients for 14 months at stage IIIA-B (p<0.05). At stage IIIC, there was no statistically significant difference in the survival rate of patients. There was a tendency to increase the survival rate by 5 months (p>0.05), which is associated with the pronounced prevalence of the tumor process and the technical impossibility of removing the tumor. Discussion. The concentration of drugs in the abdominal cavity and in the blood plasma significantly differs due to the functioning of the peritoneal-plasma barrier, which leads to a lower toxicity in comparison with systemic chemotherapy, and therefore allows you to give a large dose of the drug with fewer adverse events, and the fact of hyperthermia (42°C) has a positive effect on the effectiveness of intraperitoneal chemotherapy. To date, this method has not been included in the clinical recommendations on the territory of the Russian Federation, but data from foreign literature, including randomized trials, have shown the high effectiveness of this method.Conclusion. The results obtained in the course of our study demonstrate the effectiveness of this technique, in the form of an increase in overall and relapse-free survival with acceptable toxicity.

Download Full-text

Effect of Storage Time on Bond Strength Performance of Multimode Adhesives to Indirect Resin Composite and Lithium Disilicate Glass Ceramic

Operative Dentistry ◽

10.2341/15-187-l ◽

2016 ◽

Vol 41 (5) ◽

pp. 541-551 ◽

Cited By ~ 13

Author(s):

P Makishi ◽

CB André ◽

JP Lyra e Silva ◽

R Bacelar-Sá ◽

L Correr-Sobrinho ◽

...

Keyword(s):

Bond Strength ◽

Glass Ceramic ◽

Resin Composite ◽

Water Storage ◽

Lithium Disilicate ◽

Resin Cement ◽

Control Group ◽

Strength Performance ◽

Significant Difference ◽

One Year

SUMMARY Purpose: To investigate the bond strength performance of multimode adhesives (MMAs) to indirect resin composite and lithium disilicate glass ceramic after 24 hours or one year of water storage. Methods and Materials: Thirty flat and polished plates of indirect resin composite (Epricord) and thirty lithium disilicate glass ceramic plates (IPS e.max Press) were prepared. Surfaces were pretreated using sandblasting (indirect resin composite) or hydrofluoric acid (glass-based ceramic). Specimens were bonded with one of two MMAs (Scotchbond Universal [SBU] or All-Bond Universal [ABU]) or ceramic primer and hydrophobic bonding (RelyX Ceramic Primer and Adper Scotchbond Multi-Purpose Bond) as a control (n=10). Resin cement cylinders (0.75 mm in diameter × 0.5 mm in height) were bonded to both substrate surfaces using the respective adhesives. After 24 hours or one year of water storage, bonding performance was measured by microshear bond strength (MSBS) testing. Results were analyzed using three-way ANOVA with Bonferroni post hoc tests (α=0.05). Results: For indirect resin composite, significantly higher MSBS values were found for ABU after 24 hours (ABU > SBU = control); however, no significant difference among the adhesives was observed after one year (p>0.05). For glass-based ceramic, significantly different bond strengths were observed among the adhesives after 24 hours (control = ABU > SBU) and one year (control > SBU = ABU; p<0.05). Conclusions: Both MMAs tested can be considered effective alternatives for bonding to sandblasted indirect resin composite after aging, as they showed similar bond performance to that of the control group. However, separate bottles of silane bonding resin showed higher MSBS values and more durable bonding for etched glass–based ceramic.

Download Full-text

Evaluation of endothelial function, of elasticity of vessel wall and their influence on one-year prognosis of patients with myocardial infarction with obstructive and non-obstructive coronary arteries

I P Pavlov Russian Medical Biological Herald ◽

10.23888/pavlovj2020284488-496 ◽

2020 ◽

Vol 28 (4) ◽

pp. 488-496

Author(s):

Olga Fomina ◽

Sergey Stepanovich Yakushin

Keyword(s):

Myocardial Infarction ◽

Endothelial Function ◽

Coronary Arteries ◽

Vessel Wall ◽

Augmentation Index ◽

Study Groups ◽

Morphological Alterations ◽

Significant Difference ◽

One Year ◽

The One

Aim. To carry out comparative analysis of the state of the endothelial function (EF), elasticity of the vessel wall and their influence on one-year prognosis of patients with myocardial infarction (MI) with obstructive and non-obstructive coronary arteries (CA). Materials and Methods. In the first stage, 206 patients were selected diagnosed with MI, of them 103 patients with MI with non-obstructive CA (MINOCA) according to the results of coronaroangiography, and 103 patients with MI with obstructive CA (MIOCA). Using the method of random numbers, 59 patients were selected (34 patients of the first group and 25 of the second group), in whom EF and elastic properties of the arterial wall were evaluated. Patients of both groups were initially comparable in age, gender, clinical and anamneustic characteristics, and also in frequency of application of the main groups of medical drugs that influence prognosis. One-year prognosis of the two groups of patients was studied depending on the presence/absence of functional and morphological alterations of the vessel wall. Results. In evaluation of EF in patients MINOCA, the occlusion index by amplitude (OIA) below threshold values was recorded in 22 of 34 (64.7%) cases of MINOCA and in 22 of 25 (88.0%, р0.05) cases of MIOCA. Here, the average values of OIA were 1.7 (1.5; 2.3) and 1.4 (1.2; 1.8), respectively (р0.05). The values of phase shifts between the channels below the norm were equally frequent in two groups (88.2 and 88.0%, р0.05), and comparison of the average values of this parameter did not show any statistically significant difference. The calculated augmentation index normalized to the pulse rate 75 beats per minute (AIp75), in the study groups was 12.5 (9.9; 17.9) and 18.8 (12.9; 20.8), respectively (р0.05). Reduction of the elasticity of the vessel wall in the group with MINOCA was noted in 82.4% of patients, in the group MIOCA in 100% of cases (р0.05). No statistically significant differences were found in the frequency of cardiovascular events between the groups during a year (р0.05). Conclusion. Functional alterations of the vessel wall (endothelial dysfunction and reduction of elasticity of the vessel wall) in patients with MINOCA were recorded almost in 2/3 of cases, however, their incidence in MIOCA was still higher (88.0%). The one-year prognosis in the study groups MINOCA and MIOCA showed no differences.

Download Full-text