The Journal of Indian Prosthodontic Society最新文献

{"title":"Comparison and evaluation of the effect of polymerization of resin-modified glass ionomer cement and dual-cure resin cement on the crystalline structure of dentin using synchrotron X-ray diffraction and its clinical correlation with postoperative sensitivity.","authors":"Akshayaa Balaji, J Brintha Jei, B Muthukumar","doi":"10.4103/jips.jips_84_22","DOIUrl":"10.4103/jips.jips_84_22","url":null,"abstract":"<p><strong>Aim: </strong>To compare the effect of polymerization of resin-modified glass ionomer cement and dual-cure resin cement on the crystalline structure and to correlate it clinically with postoperative sensitivity.</p><p><strong>Settings and design: </strong>The evaluation of crystalline strain in the dentin slabs was done using Synchrotron X-ray diffraction. The post operative sensitivity was measured clinically using Schiff's sensitivity scale.</p><p><strong>Materials and methods: </strong>A total of 44 extracted and noncarious premolars were collected. Dentin slabs of dimensions 2 mm × 2 mm × 1.5 mm were prepared from the buccal aspect of the extracted teeth. The dentin slabs were then divided into two groups, Group A dual-cured resin cement and Group B resin-modified glass ionomer cement was applied. The dentin slabs first underwent synchrotron X-ray diffraction before and after the application of cement. Forty-two patients who were undergoing complete metal fixed prostheses on vital posterior abutments were selected. In this, 21 vital abutments were included in each group. Tooth preparation and fabrication of complete metal prostheses were done in the conventional manner and cemented using the 2 luting cements in Groups A and B, respectively. Dentinal hypersensitivity was measured using Schiff 's scale, postcementation, after 1 week and 1 month.</p><p><strong>Statistical analysis: </strong>Independent t-test was done for comparing the two cements in two cements in terms of lattice strain. Mann-Whitney U-test was done for comparing the cements with respect to dentinal hypersensitivity. Spearman's correlation coefficient was used for clinical correlation between dentinal hypersensitivity and crystalline strain.</p><p><strong>Results: </strong>The lattice strain generated in dual cure resin cement was higher than that in resin-modified glass ionomer cement and was statistically significant. Postcementation hypersensitivity was higher in dual-cured resin than resin-modified glass ionomer cement but was not statistically significant in the follow-up visits. Spearman's correlation coefficients did not reveal any significant clinical correlation between lattice strain and dentinal hypersensitivity.</p><p><strong>Conclusion: </strong>Dual cure resin cements generate greater lattice strain as compared to resin modified glass ionomer cements.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"23 2","pages":"119-126"},"PeriodicalIF":1.2,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10262100/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9720501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Overview and knowledge of prosthodontic diagnostic aids among interns and post graduates - A cross-sectional questionnaire study.","authors":"Rangarajan Vedantham, Ganesh Kumar, Rahmath Shameem Shafiullah, Arjun Badimela, Sathiyaseelan Sakthivel, Syed Ajmal","doi":"10.4103/jips.jips_514_22","DOIUrl":"10.4103/jips.jips_514_22","url":null,"abstract":"<p><strong>Aim: </strong>This study aims to evaluate and compare the knowledge of prosthodontic diagnostic aids among interns and postgraduates.</p><p><strong>Settings and design: </strong>A questionnaire survey was conducted to assess and compare the knowledge of prosthodontic diagnostic aids among interns and postgraduates. Based on the pilot study with alpha error 5% and a power of study 80%, the sample size was estimated to be 858 for each group.</p><p><strong>Materials and methods: </strong>The self constructed questionnaire consisted of 3 sections, of which each section had 5 questions, a total of 15 questions validated by a team of 6 experts. The questionnaire was distributed electronically among interns and postgraduates in various dental colleges across India. Data were collected and subjected to statistical analysis.</p><p><strong>Statistical analysis: </strong>All outcomes of this survey were analyzed using an independent t test. The Mann- Whitney test was used to determine the significance of two groups.</p><p><strong>Results: </strong>From the results obtained, it was found that interns (mean: 6.90; standard deviation: 2.442) had less knowledge regarding diagnostic tools than postgraduate students (mean: 8.76; standard deviation: 1.818).</p><p><strong>Conclusion: </strong>Diagnostic aids simplifies the process of diagnosis and treatment planning. Moreover, the knowledge of diagnostic aids among younger generation permits them to redefine the way dentistry is practiced and at the same time helps to provide better treatment results and achieve the utmost for the profession. Adequate knowledge of diagnostic aids is the need of the hour. Dental professionals should constantly update knowledge regarding various diagnostic aids in Prosthodontics, so as to arrive at optimum diagnosis and treatment plan with longer prognosis.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"23 2","pages":"157-162"},"PeriodicalIF":1.2,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10262087/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9666906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A study on relationship between dynamic postural balance and masticatory efficiency in the elderly population with complete dentures: An <i>in vivo</i> study.","authors":"Pranati Pai, B H Dhanya Kumar, D B Nandeeshwar","doi":"10.4103/jips.jips_22_23","DOIUrl":"10.4103/jips.jips_22_23","url":null,"abstract":"<p><strong>Aim: </strong>Mastication is an important consideration for patients seeking prosthodontic treatment. Individuals with mastication problems have increased risk of systemic diseases which can negatively affect a person's postural balance control, which in turn increases the risk of falls. This study aims to correlate masticatory efficiency and dynamic postural balance in complete denture patients at 3 and 6 months after denture insertion.</p><p><strong>Settings and design: </strong>In vivo - observational study.</p><p><strong>Materials and methods: </strong>Fifty edentulous healthy patients were rehabilitated with conventional complete dentures. The dynamic postural balance was evaluated using the timed up-and-go test. The masticatory efficiency was evaluated using a color-changing chewing-gum and a color scale. The values for both were recorded 3 and 6 months after denture insertion.</p><p><strong>Statistical analysis used: </strong>Spearman's correlation.</p><p><strong>Results: </strong>The correlation between the values of dynamic postural balance and the values of masticatory efficiency was negative (values are inversely proportional) at 3 months (-0.379) and at 6 months (-0.246).</p><p><strong>Conclusions: </strong>This study showed that there is a correlation between dynamic postural balance and masticatory efficiency. Prosthodontic rehabilitation of edentulous patients is important for improving postural balance by generating adequate postural reflex through mandibular stability for the prevention of falls in the elderly population and improving masticatory efficiency.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"23 2","pages":"170-177"},"PeriodicalIF":1.2,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10262095/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9666907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnetic resonance imaging investigations in patients with metallic dental prosthesis: \"The associated dilemma for medical fraternity and the dentist's role\".","authors":"Ritika Bhambhani, Santanu Sen Roy, Shubha Joshi","doi":"10.4103/jips.jips_473_22","DOIUrl":"10.4103/jips.jips_473_22","url":null,"abstract":"<p><strong>Background: </strong>Interdisciplinary referrals for dental examination in hospital setups are common before radiotherapy, kidney transplants, or magnetic resonance imaging (MRI). The patients who walk in could be random patients with metallic or porcelain-fused-to-metal prostheses done elsewhere but might require an opinion before the MRI. This leaves quite a responsibility on the consulting dentist to green signal the procedure. There is a lack of evidence in the literature, to confirm the absence of any untoward consequence during such MRI, which might leave the dentist in dilemma. Dental materials' magnetic behavior raises concern regarding whether they are 100% nonferromagnetic; furthermore, the examining dentist might be unaware of the metal used (Co-Cr, Ni-Cr, or trace elements). Clinicians may also come across full-mouth rehabilitated patients with multiple crown-bridge prostheses or metallic superstructure for implant prostheses. Research in the area leaves many unanswered questions because most studies have evaluated artifacts during MRI and are in vitro. Titanium is considered to be safe due to its paramagnetic behavior, whereas the literature does not rule out the probability of dislodgment of other porcelain fused to metal (PFM) prostheses. Due to less reported literature there exists dilemma to ascertain MRI in these patients. An online Google Search, PubMed, and gray literature portray the ambiguity associated with metal and PFM crowns and their magnetic behavior during MRI. Most studies were associated with the artifacts caused during MRI and methods of reducing them under in vitro situations. The concern for dislodgment has also been expressed in a few reports.</p><p><strong>Technique: </strong>Certain steps of a pre-MRI checkup and an innovative technique have been discussed to assure patient safety during the MRI.</p><p><strong>Conclusion: </strong>The technique explained is inexpensive and a quick aid that can be executed before the investigation.</p><p><strong>Clinical and research implications: </strong>There is a need to study and understand the magnetic behavior of Co-Cr and Ni-Cr crowns in the presence of various MRI strengths.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"23 2","pages":"203-206"},"PeriodicalIF":1.2,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10262089/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9720504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of the effect of different surface treatments for preventing detachment of polyetheretherketone and titanium attachment matrix housings in overdentures: An <i>in vitro</i> study.","authors":"Pınar Yıldız, Damla Güneş Ünlü","doi":"10.4103/jips.jips_497_22","DOIUrl":"10.4103/jips.jips_497_22","url":null,"abstract":"<p><strong>Aim: </strong>The attachment matrix housing (AMH) of implant overdentures is not chemically bonded with acrylic resins. Therefore, AMH may lose due to insertion and removal forces. This study aims to investigate the effects of different surface treatments to reduce the detachment of AMH and to compare the adhesion of the AMH used in implant-supported overdentures made of different materials with the reline acrylic resin.</p><p><strong>Materials and methods: </strong>Titanium and polyetheretherketone (PEEK) AMHs were separated into four surface treatment groups; no treatment, airborne-particle abrasion (APA) applied, universal bond (UB) applicated, APA, and UB applicated. Eight millimeters in diameter and ten millimeters tall straws were used to restrain the reline acrylic resin prepared according to the manufacturer's instructions and the resin was injected onto the surface-treated AMH. After the polymerization was completed, the universal testing machine performed the tensile bond strength (TBS) test with a fishing line passed through the acrylic resins.</p><p><strong>Statistical analysis used: </strong>TBS data were analyzed with two and one-way ANOVA and Tukey HSD post hoc tests (α =0.05).</p><p><strong>Results: </strong>According to the two-way ANOVA results, titanium AMHs (103.78 ± 45.98 N) showed higher TBS than PEEK AMHs (67.81 ± 28.61 N). UB applicated titanium groups showed significantly increased TBS values.</p><p><strong>Conclusions: </strong>Using titanium AMHs may be a better choice in situations where clinical aesthetic expectations are unimportant for adhesion to reline acrylic resins. The UB resin significantly increased the bonding of the titanium AMHs with reline resins. The application of UB resin to titanium housings can be easily applied in a clinical situation and can reduce the detachment of the titanium AMHs.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"23 2","pages":"142-149"},"PeriodicalIF":1.2,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10262101/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10022775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative evaluation of shear bond strength at the interface of monolithic zirconia with two distinct core build-up materials: An <i>in vitro</i> study.","authors":"Parmar Aditi, Sonal Mehta, Ruchi Raj","doi":"10.4103/jips.jips_1_23","DOIUrl":"10.4103/jips.jips_1_23","url":null,"abstract":"<p><strong>Aim: </strong>The study aimed to evaluate and compare the shear bond strength (SBS) at the interface of monolithic zirconia with zirconomer (Zr) core build-up, a new type of glass ionomer cement to monolithic zirconia with composite resin core build-up material.</p><p><strong>Setting and design: </strong>In vitro a comparative study.</p><p><strong>Materials and methods: </strong>A total of 32 disk-shaped samples of monolithic zirconia and two distinct core build-up materials: Zr (n = 16) and composite resin (n = 16) were used. The two components, monolithic zirconia with Zr core build-up and monolithic zirconia with composite resin core build-up, were bonded using zirconia primer and self-adhesive, dual-cure cement. The samples were subsequently thermocycled, and the SBS was tested at their interfaces. The failure modes were determined using a stereomicroscope. Data were evaluated using the descriptive analysis for mean, standard deviation, confidence interval, and independent t-test for intergroup comparison.</p><p><strong>Statistical analysis used: </strong>Descriptive analysis, independent t-test, Chi-square test.</p><p><strong>Results: </strong>The mean SBS (megapascals) of monolithic zirconia to Zr core build-up (0.74) was statistically significant when compared to monolithic zirconia with composite resin core build-up material (7.25) (P ≤ 0.001). Zirconomer core build-up showed 100% adhesive failure; composite resin core build-up had 43.8% cohesive, 31.2% mixed, and 25.0% adhesive failures.</p><p><strong>Conclusion: </strong>When evaluating the two core build-up materials' bindings to monolithic zirconia, Zr and composite resin core build-up showed statistically significant differences. Although Zr has been demonstrated to be the optimal core build-up material; however, additional investigation is required to determine how it bonds to monolithic zirconia more effectively.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"23 2","pages":"178-183"},"PeriodicalIF":1.2,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10262097/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9720502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Completely digitally fabricated custom functional finger prosthesis.","authors":"Anuraj Vijayan, Vishwas Bhatia, Saksham Arora, Shubham Gupta","doi":"10.4103/jips.jips_372_21","DOIUrl":"10.4103/jips.jips_372_21","url":null,"abstract":"<p><p>The loss of a finger in any capacity as a result of trauma has a significant influence on the patient's everyday life, as well as their psychological and physical health. Multiple conventional techniques have been reported in the literature, mostly offering psychological and cosmetic benefits to such individuals. However, there is a paucity of literature for functional finger prosthesis. This case report describes rehabilitation of an amputated index finger using an innovative digital workflow, thereby making it impression-free, cast-free, accurate, less time-consuming, and above all functionally viable. Digital technology was used for designing, and fabrication of this prosthesis was done using three-dimensional (3-D) printing. When compared to traditional prostheses, this 3-D-printed prosthesis was functional, allowing the patient to conduct everyday activities and providing the patient's confidence a psychological boost.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"23 2","pages":"198-202"},"PeriodicalIF":1.2,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10262102/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9666905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Accuracy of single-unit ceramic crown fabrication after digital versus conventional impressions: A systematic review and meta-analysis.","authors":"Jimmy Manisha, Gunjan Srivastava, Sitansu Sekhar Das, Naghma Tabarak, Gopal Krishna Choudhury","doi":"10.4103/jips.jips_534_22","DOIUrl":"10.4103/jips.jips_534_22","url":null,"abstract":"<p><p>In the present era when interest in digital dentistry is increasing, the published literature is still confusing about whether digital impression provides similar accuracy as provided by a conventional impression for the fabrication of a single-unit ceramic crown. The aim of the study was to systematically review the in vivo studies comparing marginal, axial, and occlusal fit of single-unit ceramic crowns fabricated after digital impressions with the ones fabricated after conventional impressions. The PubMed, Scopus, and Cochrane online databases were searched for studies comparing the digital impression technique with the conventional technique for single-unit ceramic crowns. Data extraction was done for the year of publication, type of study, country, number of patients, impression system (intraoral scanner [IOS] or conventional impression), marginal fit, axial fit, and occlusal fit. Ten studies were included for meta-analysis regarding the discrepancy in marginal fit, axial fit, and occlusal fit. The digital impression proved to be better than the conventional impression. The mean difference for marginal fit was 6.54 μm (heterogeneity P < 0.00001, I² = 93%), for axial fit 24.69 μm (heterogeneity P = 0.34, I² = 11%), and for occlusal fit 6.99 μm (heterogeneity P = 0.03, I² = 59%). The results of meta-analyses suggest that there is no significant difference between the impression systems (marginally favoring digital impression). The digital impression technique provided better marginal and internal fit of single-unit ceramic crowns than the conventional impression technique. The digital workflow using IOS provided a clinically acceptable marginal fit for single-unit crowns.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"23 2","pages":"105-111"},"PeriodicalIF":1.2,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10262093/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10022773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of antifungal efficacy of commercially available denture cleanser and the extract of <i>Turbinaria conoides</i> seaweed against <i>Candida albicans</i> adherent to acrylic denture base resin: An <i>in vitro</i> study.","authors":"R Varsha, Shivasakthy Manivasakan, David Livingstone, E Rajkumar, Mangaiyarkarasi Ravirajan, A Jenie Rosna","doi":"10.4103/jips.jips_136_22","DOIUrl":"10.4103/jips.jips_136_22","url":null,"abstract":"<p><strong>Aim: </strong>One of the main factors responsible for the development of Candida albicans on the surface of denture is improper maintenance of dentures. Denture hygiene can be achieved by regular cleansing of dentures using an appropriate denture cleanser. The aim of the study is to evaluate the antifungal efficacy of commercially available denture cleanser and the extract of Turbinaria conoides seaweed against C. albicans adherent to the surface of denture base resin.</p><p><strong>Settings and design: </strong>This was an in vitro experimental study.</p><p><strong>Materials and methods: </strong>Twenty-four Acrylic resin samples of dimension 10-mm radius and 2-mm thickness was randomly divided into two groups. The denture base resin was coated with C. albicans. The colonies present on the surface of each denture base resin were evaluated by serial dilution method. Group A was treated with commercially available denture cleanser and Group B was treated with extract of seaweed T. conoides. The colonies were then evaluated using serial dilution.</p><p><strong>Statistical analysis used: </strong>The colony count values obtained by serial dilution were tabulated. These values were statistically analysed using t-test.</p><p><strong>Results: </strong>Reduction of colony count is more in T. conoides than commercially available Fittydent; the difference was statistically significant with a mean difference of 65 at dilution 10^-2 and 29.25 at dilution 10^-3 using t-test with P < 0.001.</p><p><strong>Conclusion: </strong>Within the limitations of this in vitro study, it was proved that the extract of T. conoides seaweed and commercially available denture cleanser Fittydent was effective in reducing the colony count of C. albicans. T. conoides seaweed is statistically significant than commercially available Fittydent.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"23 2","pages":"112-118"},"PeriodicalIF":1.2,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10262094/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10022772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of shear bond strength and translucency of zirconia-reinforced lithium silicate and lithium disilicate: An <i>in vitro</i> study.","authors":"Amir Khan, Tabrez Lakha, Supriya Kheur, Batul Qamri, Mohit G Kheur","doi":"10.4103/jips.jips_88_22","DOIUrl":"10.4103/jips.jips_88_22","url":null,"abstract":"<p><strong>Aim: </strong>To analyze the effect of various surface treatment protocols on shear bond strength between the ceramic and resin cement (RC) and influence of zirconia on the translucency of LD as compared to zirconia-reinforced lithium silicate (ZLS).</p><p><strong>Setting and design: </strong>In-Vitro Study.</p><p><strong>Materials and methods: </strong>Specimens (14 mm × 12 mm × 2 mm) (n = 135) and (14 mm × 12 mm × 1 mm) (n = 45) of ZLS computer-aided design/computer-aided manufacturing glass ceramic block and LD were fabricated, respectively. All the ZLS specimens were crystallized and were tested for the translucency parameter and ceramic-resin shear bond strength. Two different types of surface treatment were used on the ZLS and LD samples. The specimens were treated using the hydrofluoric acid (HF) etching or air abrasion with diamond particles (DPs). The specimens were then bonded using self-adhesive RC to a composite disc of 10 mm and thermocycling was performed. A universal testing machine was used to evaluate ceramic-resin shear bond strength after 24 h. The translucency of the specimens was evaluated using the spectrophotometer by calculating the difference in color between the readings over a black background and a white background.</p><p><strong>Statistical analysis used: </strong>Data were statistically analyzed using the independent sample t-test and analysis of variance with Bonferroni's correction and comparison was made between the specimens.</p><p><strong>Results: </strong>Independent sample t-test demonstrated statistically significantly higher translucency for group ZLS (61.44 ± 22) as compared to group LD (20.16 ± 8.39) (P < 0.001). Group ZLS showed statistically significant higher shear bond strength when surface treatment using HF or air abrasion with synthetic DPs was performed as compared to untreated group (3.58 ± 0.45) (P < 0.001). Moreover, air abrasion group (16.79 ± 2.11 megapascal [MPa]) demonstrated statistically significant higher shear bond strength as compared to HF etched group (8.25 ± 0.30 MPa) (P < 0.001). Furthermore, statistically significant higher shear bond strength was noted when air abrasion was done for group ZLS (16.79 ± 2.11 MPa) as compared to group LD (10.82 ± 1.92 MPa) (P < 0.001). However, on surface treatment with HF, a statistically significantly lower shear bond strength was noted for group ZLS (8.25 ± 0.30 MPa) as compared to group LD (11.29 ± 0.58 MPa) (P = 0.001).</p><p><strong>Conclusion: </strong>ZLS demonstrated higher translucency compared to LD restorations. DP abrasion of ZLS is recommended to achieve higher shear bond strength between the ceramic and RC.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"23 2","pages":"135-141"},"PeriodicalIF":1.2,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10262088/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9720498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}