European Oral Research最新文献

{"title":"The effects of Biofreeze and superficial heat on masticatory myofascial pain syndrome.","authors":"Deniz Yaman,&nbsp;Cansu Alpaslan,&nbsp;Oya Kalaycioglu","doi":"10.26650/eor.2021858837","DOIUrl":"https://doi.org/10.26650/eor.2021858837","url":null,"abstract":"<p><strong>Purpose: </strong>This study aims to assess the influence of superficial heat and Biofreeze on pain, mouth opening (mm), and quality of life in patients with masticatory myofascial pain syndrome (MPS).</p><p><strong>Materials and methods: </strong>52 patients with MPS were included in the study. They were randomly divided into two groups. Patients in the Biofreeze group (n = 26) applied 3.5% menthol gel to the masseter and temporal muscles twice a day for seven days, while the other group applied superficial heat. Baseline, 7th, and 21st days of VAS, mouth opening (mm), and Oral Health Impact Profile-14 (OHIP-14) scores of the patients were evaluated statistically.</p><p><strong>Results: </strong>The mouth opening increased by 4.27 ± 3.80 mm in the Biofreeze group and 2.58 ± 2.16 mm in the superficial heat group. In each group, a significant decrease in VAS and OHIP-14 scores was observed on the 7th day compared to the baseline values (p<0.001). There was no statistically significant difference between the two applications on myofascial pain, mouth opening (mm), and OHIP-14 total score variables. The favorable effects of both applications on these parameters were limited to the duration of use.</p><p><strong>Conclusion: </strong>Biofreeze and superficial heat in MPS were found to increase the quality of life, but the limited effectiveness of these applications underlines the importance of the underlying factors.</p>","PeriodicalId":41993,"journal":{"name":"European Oral Research","volume":"55 3","pages":"133-138"},"PeriodicalIF":1.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/d8/5b/eor-055-133.PMC8547752.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39704943","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":"Orthodontic treatment need and occlusal traits in the early mixed dentition among 8-9-year old Saudi children.","authors":"Guna Shekhar Madiraju,&nbsp;Sarah Ahmed Alabd-Rab Alnabi,&nbsp;Anfal Saeed Almarzooq","doi":"10.26650/eor.2021836877","DOIUrl":"https://doi.org/10.26650/eor.2021836877","url":null,"abstract":"<p><strong>Purpose: </strong>The present study aimed to assess the prevalence of occlusal traits and to evaluate the orthodontic treatment need among children aged 8-9 years in Al Ahsa, Eastern region of Saudi Arabia.</p><p><strong>Materials and methods: </strong>A descriptive cross-sectional study was conducted among 282 Saudi children who were randomly selected from those visiting dental outpatient clinics at the College of dentistry in King Faisal University, AlAhsa. All the children were evaluated using the DHC and AC components of Index of Orthodontic Treatment Need (IOTN). Descriptive statistics, chisquare test and Fisher's Exact test were used for data analysis with statistical significance set at p< 0.05.</p><p><strong>Results: </strong>The most prevalent malocclusal trait was crowding (39.7%) followed by increased overjet (28.4%). About 30.9% and 17% of the children were in definite need for orthodontic treatment according to DHC and AC of IOTN, respectively. There was no statistical difference in the distribution of DHC (p=0.116) and AC (p=0.177) scores between the gender.</p><p><strong>Conclusion: </strong>This study demonstrated high percentage of malocclusal traits and orthodontic treatment need in the mixed dentition period among 8-9-year-old children in the Eastern region. Emphasis should be placed on early orthodontic screening and treatment in the mixed dentition stage of dental development.</p>","PeriodicalId":41993,"journal":{"name":"European Oral Research","volume":"55 3","pages":"110-115"},"PeriodicalIF":1.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/1b/e2/eor-055-110.PMC8547751.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39865733","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 efficacy and pain perception using 0.5% Bupivacaine and 2% Lidocaine in periodontal Surgery - A split mouth randomized clinical trial.","authors":"Shanmukha Srinivas Manikanta Tirumalasetty, Dwarakanath Chinniswami Doraisami, Santosh Venkata Ramesh Konathala, Subhadra Gautami Penmetsa, Naga Venkata Satya Sai Sruthima Gottumukkala","doi":"10.26650/eor.2021853507","DOIUrl":"10.26650/eor.2021853507","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the effectiveness of bupivacaine and lidocaine local anesthesia on the intra-surgical and post-surgical pain control in patients undergoing periodontal flap surgery.</p><p><strong>Materials and methods: </strong>A randomized, single-blind, split-mouth design was employed in patients who are scheduled for periodontal flap surgery for at least two similar sextants with similar anesthetic techniques. Fifty patients (age range 16-65 years, 32 males and 28 females) enrolled in the present study. On one-site, the flap surgery was performed using 2% lidocaine with 1:200000 epinephrine and on the other with 0.5% bupivacaine with 1:200000 epinephrine. Base line clinical parameters, probing pocket depth, clinical attachment level were recorded. Pain during intra operative period, at the time of loss of numbness and for three consecutive days was measured using visual analog scale (VAS).</p><p><strong>Results: </strong>Significant differences were observed between the two groups in the intra operative pain scores (p=0.0045) and pain scores at the time of loss of numbness (p=0.0005) but not at the 1st, 2nd and 3rd day after the surgery.</p><p><strong>Conclusion: </strong>Bupivacaine was markedy more effective than the lidocaine. Thus the usage of bupivacaine can be substantiated for periodontal surgeries for the control of pain in the intra operative and immediate post-operative period to increase patients' comfort.</p>","PeriodicalId":41993,"journal":{"name":"European Oral Research","volume":"55 3","pages":"139-145"},"PeriodicalIF":1.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/63/6d/eor-055-139.PMC8547754.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39704944","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":"The effects of final irrigants on the push-out bond strength of two calcium silicate-based root canal sealers: an in vitro study.","authors":"Davut Celik,&nbsp;Ayse Tuba Ozalp Koca,&nbsp;Tugba Kosar,&nbsp;Tamer Tasdemir","doi":"10.26650/eor.2021922696","DOIUrl":"https://doi.org/10.26650/eor.2021922696","url":null,"abstract":"<p><strong>Purpose: </strong>The purpose of the present study was to investigate the effect of the different irrigant combinations used in final irrigation on the push-out bond strength of root canal sealers that have different compositions.</p><p><strong>Materials and methods: </strong>In total 60 dentinal slices in 1 mm thickness were collected from 15 extracted mandibular premolar teeth; 4 slices from each tooth. 3 canal-like artificial cavities were opened on each dentinal slice. Samples were divided into 4 experimental groups, each of which consisted of 15 samples. In group 1, samples were immersed in 5.25% NaOCl and 17% EDTA solutions respectively; in group 2, immersed in 5.25% NaOCl and 2% CHX solutions respectively; in group 3, immersed in 5.25% NaOCl, 17% EDTA and 2% CHX solutions respectively; and in group 4 immersed in distilled water. After drying with absorbent papers, each cavity in dentinal slice sample was filled with different sealer (Endoseal MTA, Tech Biosealer Endo or AH Plus). Two days later, the push-out bond examination was performed.</p><p><strong>Results: </strong>AH Plus showed higher push-out bond strength value in two combinations (group 2 and 3) in which final irrigants contained CHX (p<0.001). Dentinal push-out bond strengths of root canal sealers from Endoseal MTA and Tech BioSealer Endo were not affected by final irrigant (p=0.965).</p><p><strong>Conclusion: </strong>Using CHX after NaOCl in final irrigant increases push-out strength of epoxy resinbased sealer but, did not create any difference in dentinal push-out bond strength of calcium silicate-based sealers.</p>","PeriodicalId":41993,"journal":{"name":"European Oral Research","volume":"55 3","pages":"146-151"},"PeriodicalIF":1.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/c3/e1/eor-055-146.PMC8547750.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39704945","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 a collagen-bioaggregate composite scaffold in the repair of sheep pulp tissue.","authors":"Burak Dayi,&nbsp;Deniz Sezlev Bilecen,&nbsp;Hatice Eröksüz,&nbsp;Muhammet Yalcin,&nbsp;Vasif Hasirci","doi":"10.26650/eor.2021911441","DOIUrl":"https://doi.org/10.26650/eor.2021911441","url":null,"abstract":"<p><strong>Purpose: </strong>This study aimed to compare the effects of the collagen-BioAggregate mixture (CBA-M) and collagen-BioAggregate composite (CBA-C) sponge as a scaffolding material on the reparative dentin formation.</p><p><strong>Materials and methods: </strong>CBA-C sponge (10:1 w/w) was obtained and characterized by Scanning Electron Microscopy (SEM) and Mercury Porosimetry. Cytotoxicity of the CBA-C sponge was tested by using the L929 mouse fibroblast cell line. Dental pulp stem cells (DPSCs) were isolated from the pulp tissue of sheep teeth and characterized by flow cytometry for the presence of mesenchymal stem cell marker, CD44. The osteogenic differentiation capability of isolated DPSCs was studied by Alizarin Red staining. The cells were then used to study for the compatibility of CBA-C sponge with cell proliferation and calcium phosphate deposition. The effect of CBA-C sponge and CBA-M on the induction of dentin regeneration was studied in the perforated teeth of sheep for the eight-week period. All the analyses were performed with appropriate statistical hypothesis tests.</p><p><strong>Results: </strong>CBA-C sponge was found to be biocompatible for DPSCs. The DPSCs seeded on the CBA-C sponge were able to differentiate into the osteoblastic lineage and deposit calcium phosphate crystals in vitro. Reparative dentin formation was observed after the second week in the CBA-C sponge applied group. At the end of eight weeks, a complete reparative dentin structure was formed in the CBA-C sponge applied group, whereas necrotic tissue residues were observed in groups treated with the CBA-M.</p><p><strong>Conclusion: </strong>CBA-C sponge represents a better microenvironment for reparative dentin formation probably due to maintaining DPSCs and allowing their osteogenic differentiation and thus calcium phosphate deposition.</p>","PeriodicalId":41993,"journal":{"name":"European Oral Research","volume":"55 3","pages":"152-161"},"PeriodicalIF":1.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/5d/ea/eor-055-152.PMC8547756.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39705412","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 the distance between the central teeth after frenectomy: a randomized clinical study.","authors":"Abdulsamet Tanik,&nbsp;Yasin Cicek","doi":"10.26650/eor.20210030","DOIUrl":"https://doi.org/10.26650/eor.20210030","url":null,"abstract":"<p><strong>Purpose: </strong>The present study aimed to evaluate the periodontal status and the distance between the teeth one year after frenectomy in patients with abnormal frenums in the maxillary and mandibular midline.</p><p><strong>Materials and methods: </strong>This study included 50 patients (24 men and 26 women) between the ages of 13 and 53 who have frenum-induced diastemas between the incisors. The abnormal frenums were removed via conventional frenectomy. The distances between the teeth before and one year after the surgery were measured with a caliper. To determine the periodontal status, the pocket depth, plaque index, and bleeding on probing were measured from four surfaces. In addition, the amount of attached gingiva and degree of gingival recession were recorded and were statistically analysed.</p><p><strong>Results: </strong>A significant decrease in the distance between teeth before and after frenectomy was observed (p<0.05). There was a statistically significant difference in the amount of gingival attachment, pocket depth, degree of gingival recession, plaque index, and bleeding on probing (p<0.05).</p><p><strong>Conclusion: </strong>The removal of abnormal frenums with frenectomy can contribute to the reduction in the distance between the teeth. In addition, frenectomy increases the amount of gingiva and decreases the depth of the pocket, gingival recession, amount of plaque, and bleeding.</p>","PeriodicalId":41993,"journal":{"name":"European Oral Research","volume":"55 2","pages":"99-103"},"PeriodicalIF":1.0,"publicationDate":"2021-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/64/a1/eor-055-099.PMC8244937.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39175310","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":"The in-vitro effects of white henna addition on the Candida albicans adhesion and physical properties of denture base resin.","authors":"Mohammed M Gad,&nbsp;Mouna Al-Sunni,&nbsp;Abrar Al-Shayeb,&nbsp;Reyam Al-Namsy,&nbsp;Zainab Al-Naser,&nbsp;Soban Q Khan","doi":"10.26650/eor.20210033","DOIUrl":"https://doi.org/10.26650/eor.20210033","url":null,"abstract":"<p><strong>Purpose: </strong>This in-vitro study evaluated and compared the effect of white henna (WH) and natural henna (NH) addition on Candida albicans adhesion and physical properties of the denture base material.</p><p><strong>Materials and methods: </strong>A total of 243 acrylic resin specimens (9 per group) were divided as follows: 81 for flexural strength, 81 for Candida albicans adherence test, and 81 for surface roughness, translucency, and hardness. Heat-polymerized acrylic resin specimens were prepared by adding 0.5, 1.0, 1.5, or 2.0 wt% of WH or NH. Candida albicans adhesion was determined using direct culture and slide count methods. Flexural strength, surface roughness, hardness, and translucency were measured using the three-point bending test, profilometer, Vickers hardness test, and spectrophotometer, respectively. ANOVA and post hoc Tukey's tests were performed for data analysis.</p><p><strong>Results: </strong>Addition of 0.5% WH, 1% WH, and 0.5% NH to denture base resin significantly decreased Candida albicans adhesion (p<0.05). WH and NH significantly decreased the flexural strength and translucency, except 0.5% WH, and significantly increased surface roughness, except 0.5% WH and 0.5% NH. WH addition showed nonsignificant differences in the hardness, while NH addition significantly decreased hardness (p<0.05).</p><p><strong>Conclusion: </strong>Addition of WH and NH decreased C. albicans adhesion to PMMA denture base resin. However, flexural strength, translucency, and surface roughness were adversely affected, particularly at higher concentrations. Hardness was reduced with NH only.</p>","PeriodicalId":41993,"journal":{"name":"European Oral Research","volume":"55 2","pages":"86-93"},"PeriodicalIF":1.0,"publicationDate":"2021-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/eb/b5/eor-055-086.PMC8244940.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39175308","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":"Reliability and validity of the Turkish version of oral health impact profile for edentulous subjects.","authors":"Canan Bural,&nbsp;Onur Geckili,&nbsp;Ozge Erdogan,&nbsp;Kivanc Bektas-Kayhan,&nbsp;Suleyman Cagatay Dayan","doi":"10.26650/eor.20210007","DOIUrl":"https://doi.org/10.26650/eor.20210007","url":null,"abstract":"<p><strong>Purpose: </strong>The validated translations of the OHIP-EDENT exist in different languages; however, there is no reliable and validated Turkish translation. The present study was conducted to evaluate the reliability and to validate the Oral Health Impact Profile in edentulous subjects translated to Turkish (OHIP-EDENT-T).</p><p><strong>Materials and methods: </strong>The study sample included 104 conventional complete denture wearers (58 women and 46 men, mean age: 61.13 ± 9.43 years). The original English version of OHIPEDENT was translated into Turkish using a forward-backward method and applied to the subjects. The reliability of the OHIP-EDENT-T was evaluated using internal consistency and the test-retest method. Validity was determined as construct and convergent validity. The construct validity of OHIP-EDENT-T was assessed using exploratory and confirmatory factor analysis.</p><p><strong>Results: </strong>The Cronbach's alpha value for OHIP-EDENT-T was 0.890. The intraclass correlation coefficient (ICC) was 0.749 for the OHIP-EDENT-T total score, and ICCs for the subscales ranged from 0.630 (95% CI = 0.501-0.823) to 0.859 (95% CI = 0.531-0.897), indicating good to excellent agreement. The Kaiser-Meyer-Olkin value for sampling adequacy was 0.820 and results of Bartlett's sphericity test indicated statistical significance (χ2=1139.767; df=171, p=0.001). This showed that factorial analysis could be applied to the data set. The three-factor structure of the scale explained 81.1% of the observed variance. The agreement of the three-factor solution was further tested with confirmatory factor analysis, and the fit index was found to be acceptable (chi-square fit test=1.449, RMSEA=0.040, GFI=0.94, CFI=0.93).</p><p><strong>Conclusion: </strong>Within the limitations of this study, it can be concluded that OHIP-EDENT-T is a valid and reliable instrument for evaluating the quality of life of edentulous patients.</p>","PeriodicalId":41993,"journal":{"name":"European Oral Research","volume":"55 2","pages":"67-73"},"PeriodicalIF":1.0,"publicationDate":"2021-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/0b/f8/eor-055-067.PMC8244939.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39176809","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":"The retreatment abilities of ProTaper Next and F6 Skytaper: a micro-computed tomography study.","authors":"Esma Saricam,&nbsp;Selen Ince-Yusufoglu,&nbsp;Mert Ocak,&nbsp;Ferhat Geneci,&nbsp;H Hamdi Celik","doi":"10.26650/eor.20210009","DOIUrl":"https://doi.org/10.26650/eor.20210009","url":null,"abstract":"<p><strong>Purpose: </strong>The aim of this study was to evaluate the retreatment abilities of the ProTaper Next (PTN) and F6 SkyTaper (F6) systems by using micro-computed tomography (microct), radiographic and microscopic imaging techniques.</p><p><strong>Materials and methods: </strong>The root canals of twenty-six extracted mandibular premolar teeth were prepared and obturated. For the retreatment procedure, the teeth were randomly divided into two equal groups according to endodontic instruments: PTN (X4) and F6 (#40/.06). Pre- and post-operative filling material volumes were measured with micro-ct, and areas were measured with radiographic and microscopic imaging techniques. The percentages of residual material were calculated, and then statistically compared. The significance level was set at p<0.05.</p><p><strong>Results: </strong>There was no statistically significant difference between F6 and PTN for retreatment efficacy in the micro-ct and radiographic imaging techniques (p>0.05). PTN demonstrated better cleaning ability when evaluated by microscopic imaging. (p<0.05). The correlation was moderate between micro-ct and radiographic, and micro-ct and microscopic imaging groups; however, it was strong between radiographic and microscopic imaging methods.</p><p><strong>Conclusion: </strong>The PTN and F6 files had similar effects in the removal of filling material with microct evaluation. The radiographic imaging method gave similar results with micro-ct imaging.</p>","PeriodicalId":41993,"journal":{"name":"European Oral Research","volume":"55 2","pages":"74-79"},"PeriodicalIF":1.0,"publicationDate":"2021-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/2d/b3/eor-055-074.PMC8244941.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39176810","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":"Dimensional accuracy of vinyl polyether and polyvinyl siloxane impression materials in direct implant impression technique for multiple dental implants.","authors":"Rohini Rajendran,&nbsp;N Gopi Chander,&nbsp;Kuttae Vishwanathan Anitha,&nbsp;Balasubramanian Muthukumar","doi":"10.26650/eor.20210110","DOIUrl":"https://doi.org/10.26650/eor.20210110","url":null,"abstract":"<p><strong>Purpose: </strong>The present study compared the dimensional accuracy of vinyl polyether silicone (VPES) and polyvinyl siloxane (PVS) impression materials used for non-splinted (NS) and splinted (S) direct open-tray impression techniques for multiple implants inserted in simulated edentulous mandibles.</p><p><strong>Materials and methods: </strong>A mandibular stainless steel model with eight internal connections for implant analogs was fabricated to simulate a clinical scenario. The acrylic resin splinted and non-splinted direct impressions were obtained for both VPES and PVS materials. Seventy-two cast samples were divided into four groups based on the impression techniques and materials used. The dimensional accuracies of the casts were measured in three different axes using a computerized coordinate measuring machine (CMM), and were statistically compared.</p><p><strong>Results: </strong>The differences in the distortion values between the VPES and PVS impression materials were not statistically significant. Similarly, the differences between the splinted and non-splinted groups among the VPES and PVS materials were not statistically significant.</p><p><strong>Conclusion: </strong>The casts fabricated from VPS or PVS impression materials provide similar dimensional accuracy regardless of the implant splinting method.</p>","PeriodicalId":41993,"journal":{"name":"European Oral Research","volume":"55 2","pages":"54-59"},"PeriodicalIF":1.0,"publicationDate":"2021-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/ba/ae/eor-055-054.PMC8244944.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39176807","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}