scholarly journals A pilot trial on lithium disilicate partial crowns using a novel prosthodontic Functional Index for Teeth (FIT)

2019 ◽  
Author(s):  
Edoardo Ferrari Cagidiaco ◽  
Simone Grandini ◽  
Cecilia Goracci ◽  
Tim Joda
Keyword(s):  
Clinical Performance ◽  
Pilot Trial ◽  
Lithium Disilicate ◽  
Bone Biology ◽  
Functional Index ◽  
Posterior Teeth ◽  
Significant Difference ◽  
Group 2 ◽  
Technical Complication ◽  
Level Of Significance

Abstract Background Lithium disilicate is now a well accepted material for indirect restorations. The aim of this trial was to evaluate two lithium disilicate systems using a novel prosthodontic Functional Index for Teeth (FIT).Methods Partial adhesive crowns on natural abutment posterior teeth were made on sixty patients (clinicaltrial.gov # NCT 01835821). Patients were divided into two groups: Group 1 e.max press (Ivoclar), Group 2 LiSi press (GC Co.). The restorations were followed-up for 3 years. The FIT is composed of seven variables (Interproximal, Occlusion, Design, Mucosa, Bone, Biology and Margins), each of them to be evaluated using a 0-1-2 scoring scheme. The Mann-Whitney ‘U’ test was applied. The level of significance was set at p<0,05.Results Survival rate was 100%, without any biological or technical complication. No statistically significant difference emerged between the two groups in any of the assessed variables (p>0.05).Conclusions The results showed that it is possible to evaluate the clinical performance of partial crowns using FIT. The FIT proved to be an effective tool to foresee the possible risk of failures and to monitor the performance of the restorations at each recall. The two lithium dislocate materials showed same results after 3 years of clinical service.

scholarly journals A pilot trial on lithium disilicate partial crowns using a novel prosthodontic Functional Index for Teeth (FIT)

2019 ◽  
Author(s):  
Edoardo Ferrari Cagidiaco ◽  
Simone Grandini ◽  
Cecilia Goracci ◽  
Tim Joda
Keyword(s):  
Clinical Performance ◽  
Pilot Trial ◽  
Lithium Disilicate ◽  
Bone Biology ◽  
Functional Index ◽  
Posterior Teeth ◽  
Significant Difference ◽  
Group 2 ◽  
Technical Complication ◽  
Level Of Significance

Abstract Background Lithium disilicate is now a well accepted material for indirect restorations. The aim of this trial was to evaluate two lithium disilicate systems using a novel prosthodontic Functional Index for Teeth (FIT).Methods Partial adhesive crowns on natural abutment posterior teeth were made on sixty patients (clinicaltrial.gov # NCT 01835821). Patients were divided into two groups: Group 1 e.max press (Ivoclar), Group 2 LiSi press (GC Co.). The restorations were followed-up for 3 years. The FIT is composed of seven variables (Interproximal, Occlusion, Design, Mucosa, Bone, Biology and Margins), each of them to be evaluated using a 0-1-2 scoring scheme. The Mann-Whitney ‘U’ test was applied. The level of significance was set at p<0,05.Results Survival rate was 100%, without any biological or technical complication. No statistically significant difference emerged between the two groups in any of the assessed variables (p>0.05).Conclusions The results showed that it is possible to evaluate the clinical performance of partial crowns using FIT. The FIT proved to be an effective tool to foresee the possible risk of failures and to monitor the performance of the restorations at each recall. The two lithium dislocate materials showed same results after 3 years of clinical service.

scholarly journals A pilot trial on lithium disilicate partial crowns using a novel prosthodontic Functional Index for Teeth (FIT)

2019 ◽  
Author(s):  
Edoardo Ferrari Cagidiaco ◽  
Simone Grandini ◽  
Cecilia Goracci ◽  
Tim Joda
Keyword(s):  
Clinical Performance ◽  
Pilot Trial ◽  
Lithium Disilicate ◽  
Bone Biology ◽  
Functional Index ◽  
Posterior Teeth ◽  
Significant Difference ◽  
Group 2 ◽  
Technical Complication ◽  
Level Of Significance

Abstract Background Lithium disilicate is now a well accepted material for indirect restorations. The aim of this trial was to evaluate two lithium disilicate systems using a novel prosthodontic Functional Index for Teeth (FIT).Methods Partial adhesive crowns on natural abutment posterior teeth were made on sixty patients (clinicaltrial.gov # NCT 01835821). Patients were divided into two groups: Group 1 e.max press (Ivoclar), Group 2 LiSi press (GC Co.). The restorations were followed-up for 3 years. The FIT is composed of seven variables (Interproximal, Occlusion, Design, Mucosa, Bone, Biology and Margins), each of them to be evaluated using a 0-1-2 scoring scheme. The Mann-Whitney ‘U’ test was applied. The level of significance was set at p<0,05.Results Survival rate was 100%, without any biological or technical complication. No statistically significant difference emerged between the two groups in any of the assessed variables (p>0.05).Conclusions The results showed that it is possible to evaluate the clinical performance of partial crowns using FIT. The FIT proved to be an effective tool to foresee the possible risk of failures and to monitor the performance of the restorations at each recall. The two lithium dislocate materials showed same results after 3 years of clinical service.

scholarly journals A pilot trial on lithium disilicate partial crowns using a novel prosthodontic Functional Index for Teeth (FIT)

2019 ◽  
Author(s):  
Edoardo Ferrari Cagidiaco ◽  
Simone Grandini ◽  
Cecilia Goracci ◽  
Tim Joda
Keyword(s):  
Clinical Performance ◽  
Pilot Trial ◽  
Lithium Disilicate ◽  
Bone Biology ◽  
Functional Index ◽  
Posterior Teeth ◽  
Significant Difference ◽  
Group 2 ◽  
Technical Complication ◽  
Level Of Significance

Abstract Background Lithium disilicate is now a well accepted material for indirect restorations. The aim of this trial was to evaluate two lithium disilicate systems using a novel prosthodontic Functional Index for Teeth (FIT).Methods Partial adhesive crowns on natural abutment posterior teeth were made on sixty patients (clinicaltrial.gov # NCT 01835821). Patients were divided into two groups: Group 1 e.max press (Ivoclar), Group 2 LiSi press (GC Co.). The restorations were followed-up for 3 years. The FIT is composed of seven variables (Interproximal, Occlusion, Design, Mucosa, Bone, Biology and Margins), each of them to be evaluated using a 0-1-2 scoring scheme. The Mann-Whitney ‘U’ test was applied. The level of significance was set at p<0,05.Results Survival rate was 100%, without any biological or technical complication. No statistically significant difference emerged between the two groups in any of the assessed variables (p>0.05).Conclusions The results showed that it is possible to evaluate the clinical performance of partial crowns using FIT. The FIT proved to be an effective tool to foresee the possible risk of failures and to monitor the performance of the restorations at each recall. The two lithium dislocate materials showed same results after 3 years of clinical service.

scholarly journals A pilot trial on lithium disilicate partial crowns using a novel prosthodontic functional index for teeth (FIT)

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Edoardo Ferrari Cagidiaco ◽  
Simone Grandini ◽  
Cecilia Goracci ◽  
Tim Joda
Keyword(s):  
Bone Loss ◽  
Clinical Success ◽  
Pilot Trial ◽  
Lithium Disilicate ◽  
Functional Index ◽  
Posterior Teeth ◽  
Periodontal Tissues ◽  
Attached Gingiva ◽  
Significant Difference ◽  
Technical Complication

Abstract Background Lithium disilicate is now a well accepted material for indirect restorations. The aim of this trial was to evaluate two lithium disilicate systems using a novel prosthodontic Functional Index for Teeth (FIT). Methods Partial adhesive crowns on natural abutment posterior teeth were made on sixty patients. Patients were divided into two groups: Group 1 IPS e.max press (Ivoclar-Vivadent, Schaan, Liecthestein), and Group 2 Initial LiSi press (GC Co., Tokyo, Japan). The restorations were followed-up for 3 years, and the FIT evaluation was performed at last recall. The FIT is composed of seven variables (Interproximal, Occlusion, Design, Mucosa, Bone, Biology and Margins), each of them are evaluated using a 0–1-2 scoring scheme, and is investigated by an oral radiograph and occlusal and buccal pictures. More in details, three variables have the three scores made on the presence or not of major, minor or no discrepancy (for ‘Interproximal’, ‘Occlusion’ and ‘Design’), presence or not of keratinized and attached gingiva (‘Mucosa’), presence of bone loss > 1.5 mm, < 1.5 mm or not detectable (‘Bone’), presence or not of Bleeding on Probing and or Plaque Index (‘Biology’), presence of detectable gap and marginal stain or not (‘Margins’). The Mann-Whitney ‘U’ test was used and the level of significance was set at p < 0.05. Also, “success” of the crowns (restoration in place without any biological or technical complication) and “survival” (restoration still in place with biological or technical complication) were evaluated. Results Regarding FIT scores, all partial crowns showed a stable level of the alveolar crest without detectable signs of bone loss in the radiographic analysis. All other evaluated parameters showed a high score, between 1.73 and 2. No statistically significant difference emerged between the two groups in any of the assessed variables (p > 0.05). All FIT scores were compatible with the outcome of clinical success and no one restoration was replaced or repaired and the success rate was 100%. Conclusions The results showed that it is possible to evaluate the clinical performance of partial crowns using FIT. The FIT proved to be an effective tool to monitor the performance of the restorations and their compatibility with periodontal tissues at the recall. The FIT can be really helpful for a standardized evaluation of the quality of the therapy in prosthodontic dentistry. The two lithium disilicate materials showed similar results after 3 years of clinical service. Trial registration The study protocol was approved by the Ethical Committee of University of Siena (clinicaltrial.gov # NCT 01835821), ‘retrospectively registered’.

scholarly journals Feldspathic and Lithium Disilicate Onlays with a 2-Year Follow-Up: Split-Mouth Randomized Clinical Trial

2021 ◽  
Vol 32 (2) ◽  
pp. 53-63
Author(s):  
Guilherme de Siqueira Ferreira Anzaloni Saavedra ◽  
João Paulo Mendes Tribst ◽  
Nathália de Carvalho Ramos ◽  
Renata Marques de Melo ◽  
Vinícius Anéas Rodrigues ◽  
...  
Keyword(s):  
Clinical Performance ◽  
Glass Ceramics ◽  
Lithium Disilicate ◽  
Ceramic Materials ◽  
Significant Difference ◽  
Term Trial ◽  
Cad Cam ◽  
Age Range ◽  
Postoperative Sensitivity

Abstract The present study was a prospective, controlled, randomized, clinical short-term trial aiming to evaluate the clinical performance of adhesively luted, lithium disilicate and feldspathic glass-ceramics onlays over a period up to 2 years. A total of 11 patients (7 female, 4 male; age range: 18-60 years, mean age: 39 years) were selected for this study. Each patient received a maximum of two restorations per group in a split-mouth-design. LD: Eleven onlays, performed with lithium disilicate-based ceramic (IPS e.max CAD, Ivoclar Vivadent, Schaan, Liechtenstein), and FP: Eleven onlays, performed with feldspathic ceramic (Vita Mark II, Vita Zanhfabrik, Bad Säckingen). Recalls were performed at 2 weeks (baseline = R1), 1 year (R2) and 2 years (R3) after the cementation by three calibrated blinded independent investigators using mirrors, magnifying eyeglasses, probes and bitewing radiographs. The postoperative sensitivity, secondary caries, marginal integrity, marginal discoloration, color match, surface roughness, tooth integrity, and restoration integrity were evaluated. The Friedman test was used to determine if there was a statistically significant difference in time-to-time comparison of the parameters in the ceramics restorations. A total of 95.4% of the restorations were clinically acceptable at the 2-year recall, without a difference for any evaluation parameter for both ceramic materials. Based on the 2-year data, the CAD-CAM onlays manufactured with feldspathic and lithium-disilicate based ceramics showed similar clinical performance.

scholarly journals Differences in surface roughness of nanohybrid composites immersed in varying concentrations of citric acid

2017 ◽  
Vol 50 (2) ◽  
pp. 102
Author(s):  
Gabriela Kevina Alifen ◽  
Adioro Soetojo ◽  
Widya Saraswati
Keyword(s):  
Surface Roughness ◽  
Citric Acid ◽  
Acid Solution ◽  
High Performance ◽  
Citric Acid Solution ◽  
Posterior Teeth ◽  
Significant Difference ◽  
Nanohybrid Composite ◽  
Group 3 ◽  
Group 2

Background: The surface roughness of restoration is important in predicting the length of time it might remain in the mouth. Conditions within the oral cavity can affect the surface roughness of a restoration. Nanohybrid composite is widely used in dentistry because it can be applied to restore anterior and posterior teeth. Athletes routinely consume isotonic drinks which are acidic and even more erosive than the carbonated variety because they contain a range of acids; the highest content of which being citric acid. Purpose: The aim of the study was to analyze the surface roughness of nanohybrid composite after having been subjected to immersion in varying concentrations of citric acid. Methods: Two isotonic drinks (Pocari Sweat and Mizone) were analyzed using high performance liquid chromatography (HPLC) to quantify the respective concentrations of citric acid which they contained. A total of 27 samples of cylindrical nanohybrid composite were prepared before being divided into three groups. In Group 1, samples were immersed in citric acid solution derived from Pocari Sweat. Those of Group 2 were immersed in citric acid solution derived from Mizone; while Group 3, samples were immersed in distilled water as a control. All samples were immersed for 7 days, before their surface roughness was tested by means of a surface roughness tester (Mitutoyo SJ-201). Data was analyzed using a one-way ANOVA test. Results: The results showed that there was no significant difference in surface roughness between Groups 1, 2 and 3 (p=0.985). Conclusion: No difference in surface roughness of nanohybrid composites results from prolonged immersion in varying concentrations of citric acid.

Ceramics in dentistry: which material is appropriate for the anterior or posterior Dentition? Part 1: materials science

Dental Update ◽  
2021 ◽  
Vol 48 (8) ◽  
pp. 680-688
Author(s):  
Loo Chien Win ◽  
Peter Sands ◽  
Stephen J Bonsor ◽  
FJ Trevor Burke
Keyword(s):  
Mechanical Properties ◽  
Clinical Research ◽  
Physical Properties ◽  
Ceramic Material ◽  
Clinical Relevance ◽  
Materials Science ◽  
Clinical Performance ◽  
Lithium Disilicate ◽  
Ceramic Materials ◽  
Posterior Teeth

The large choice of ceramic materials for an indirect restoration has given clinicians a dilemma when choosing a suitable ceramic for restorations in anterior or posterior teeth. Focusing principally on the most commonly used materials, lithium disilicate and zirconia, the aim of Part 1 of this article is to compare the mechanical properties and aesthetics of these two materials. For strength, zirconia possesses superior physical properties when compared with lithium disilicate. However, in terms of aesthetics, lithium disilicate holds advantages. With both materials having different microstructures, the same cementation protocols cannot be used. Other contemporary ceramic materials are briefly reviewed. Part 2 reviews the latest clinical research on their clinical performance. CPD/Clinical Relevance: Awareness of which ceramic material performs optimally on anterior and posterior teeth is clinically important.

scholarly journals MP002: Beyond rater cognition: the impact of supervisor continuity on the quality of documented work-based assessments

CJEM ◽  
2016 ◽  
Vol 18 (S1) ◽  
pp. S66-S67
Author(s):  
W. Cheung ◽  
N. Dudek ◽  
T.J. Wood ◽  
J.R. Frank
Keyword(s):  
Repeated Measures ◽  
Clinical Teaching ◽  
Clinical Performance ◽  
Pairwise Comparison ◽  
Clinical Supervisors ◽  
Significant Difference ◽  
Group 2 ◽  
Resident Group ◽  
The Impact

Introduction: Barriers to completing high quality work-based assessments (WBAs) include relational factors such as the episodic and fragmented interaction that often exists between clinical supervisors and trainees. In an effort to increase supervisor-trainee continuity, the Department of Emergency Medicine at the University of Ottawa created Clinical Teaching Teams (CTT) in which a resident and clinical supervisor work matched shifts together throughout the year. The aim of this study was to determine the impact of supervisor-trainee continuity on the quality of assessments documented on Daily Encounter Cards (DECs). Methods: DECs completed by 20 clinical supervisors were collected and sorted into three groups representing differing degrees of supervisor-trainee continuity (Group 1: CTT emergency resident; Group 2: non-CTT emergency resident; Group 3: non-CTT off-service resident). DECs were scored using the Completed Clinical Evaluation Report Rating (CCERR), a 9-item instrument that has been shown to have reliable ratings and the ability to discriminate the quality of completed DECs. Scores were analyzed using a univariate ANOVA with “mean CCERR score” as the dependent variable and “continuity group” and “supervisor” as between-subject variables. The relationship between CCERR scores and number of CTT encounters over time was examined using a repeated measures ANOVA with “encounter number” as the within-subject factor. Results: Mean CCERR scores for the CTT (21.0, SD=5.8), non-CTT (21.9, SD=4.2), and off-service (20.7, SD=4.0) groups differed (p=0.019). A subsequent pairwise comparison demonstrated a statistically significant difference in means between the non-CTT and off-service groups (p=0.04); however, this 1.2 difference on the 45-point CCERR scale is unlikely to be of any educational significance. The number of repeated encounters did not have a statistically significant effect on CCERR scores (p=0.43) indicating that DEC quality did not improve with greater supervisor-trainee interaction. Conclusion: DEC quality as scored by the CCERR was low for all three groups. Increasing supervisor continuity alone did not result in higher quality assessments of clinical performance. Additional research focusing on the educational alliance that develops between supervisor and trainee may hold greater promise.

scholarly journals Motivation of elderly with Parkinson's disease submitted to functional training, aerobic exercise and exergame

2018 ◽  
Vol 25 (3) ◽  
Author(s):  
Sara Roza Gomes ◽  
Karen Valadares Trippo ◽  
Daniela Oliveira Guimarães ◽  
Jamary Oliveira Filho ◽  
Daniel Dominguez-Ferraz
Keyword(s):  
Physical Exercise ◽  
Training Group ◽  
Older Individuals ◽  
Bicycle Exercise ◽  
Chi Square ◽  
Functional Training ◽  
Significant Difference ◽  
Chi Square Test ◽  
Group 2 ◽  
Level Of Significance

It is recommended that patients with Parkinsons disease (PD) perform physical exercise throughout their lives. Exercise should slow disease progression and motivate the patient. Objective: Verify and compare the motivation of elderly with PD submitted to functional training, stationary bicycle exercise and exergame. Method: A randomized clinical trial was developed at a referral center. Group 1 (G1) performed functional training, group 2 (G2) trained with stationary bicycle and group 3 (G3) played on Xbox 360 with Kinect sensor. At the end of training, an interview was conducted by a single non-blind investigator to evaluate patient motivation about therapeutic exercise programs they were submitted to. For each question there were four answers options: I was not motivated, I was not very motivated, I was motivated and I was very motivated. The variables were summarized in median and interquartile range and in absolute and relative frequencies. The Pearson Chi-square test was used for statistical inference. The level of significance was 5% (p <0.05). Fifty-three older people with PD have participated. Results: Many participants have reported that exercise (G1: 72%, G2: 53%, G3: 44%) and the physiotherapist (G1: 83%, G2: 76%, G3: 94%) were very motivating. Only two participants of G2 rated exercise as not very motivating. However, no significant difference was found between the three groups. Conclusion: Older individuals with PD considered functional training, bicycle exercise and exergame as motivating modalities of physical exercise.

Evaluation of Two Facebow/Semi-adjustable Articulator Systems for Orienting Maxillary Cast on Articulators: A Pilot Study

2016 ◽  
Vol 17 (4) ◽  
pp. 327-330 ◽  
Author(s):  
CV Anusha ◽  
Amith A Singh ◽  
Babita Sangwan ◽  
M Shilpa ◽  
Akshata G Kamath
Keyword(s):  
New York ◽  
Pilot Study ◽  
Reference Point ◽  
Gold Standard ◽  
Mean Difference ◽  
Occlusal Plane ◽  
Reference Plane ◽  
Significant Difference ◽  
Group 2 ◽  
Level Of Significance

ABSTRACT Aim The present study was aimed to assess the transferability of occlusal plane (OP) orientation from the patient to the articulators with the help of two different facebow systems and evaluated with a gold standard. Materials and methods Twenty dentate patients were selected for the study. Two semi-adjustable arcon articulators that are Hanau Wide® Vue using SpringBow and Whip Mix® using quickmount facebow were used in the study. Mean angle between OP to horizontal reference plane obtained from Hanau Wide Vue articulator system (SpringBow using Orbitale as anterior reference point) and Whip Mix articulator system (quickmount facebow using nasion as anterior reference point) was tabulated. These values obtained were further compared with each other and evaluated against cephalometric evidence, which was considered as the gold standard for the study. Descriptive statistics, analysis of variance, Scheffe post hoc analysis for group comparison, and level of significance (P) was calculated using Statistical Package for the Social Sciences version 16 (IBM, New York, USA) software program. Results Intragroup comparison of mean angle OP values showed highly significant difference (p = 0.000). Comparison between Hanau Wide Vue articulator system and Whip Mix articulator system showed statistically highly significant with a mean difference of 10.51° with Hanau system values being lower than Whip Mix system. Difference between Hanau system and cephalometric values were statistically significant with a mean difference of 2.835° and Hanau system consistently recording lower values than cephalometric values. Difference between Whip Mix system and cephalometric values was also statistically significant with a mean difference of 7.680° with group 2 values were on average 7.680° higher than group 3. Conclusion Within the limitations of this study, the Hanau system and Whip Mix system showed significant difference in reproduction of angle between OP and horizontal reference plane. Hanau articulator system showed closer values to that of cephalometric values in comparison with Whip Mix articulator system. Clinical significance Orientation of the maxillary cast in an articulator is a crucial part of several techniques used in dentistry. Orientation of maxillary cast in the articulator acts as a baseline from which further steps for occlusal rehabilitation of the patients are carried out. Recording and transferring of the occlusal cant to articulators require facebow. How to cite this article Anusha CV, Singh AA, Sam G, Sangwan B, Shilpa M, Kamath AG. Evaluation of Two Facebow/Semi-adjustable Articulator Systems for Orienting Maxillary Cast on Articulators: A Pilot Study. J Contemp Dent Pract 2016;17(4):327-330

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