The Journal of Prosthetic Dentistry最新文献

{"title":"Factors affecting accuracy in the additive manufacturing of interim dental prostheses: A systematic review.","authors":"Tingmin Zhang,Yuying Zheng,Guillermo Pradíes,Shizhu Bai","doi":"10.1016/j.prosdent.2024.08.011","DOIUrl":"https://doi.org/10.1016/j.prosdent.2024.08.011","url":null,"abstract":"STATEMENT OF PROBLEMA systematic review of the effect of different factors on the accuracy of additively manufactured (AM) interim dental prostheses is lacking.PURPOSEThe purpose of this systematic review was to identify potential factors that may affect the accuracy of AM interim dental prostheses.MATERIAL AND METHODSThe review adhered to the guidelines outlined in the preferred reporting items for systematic reviews and meta-analyses (PRISMA) statement. The protocol was registered in the international prospective database of systematic reviews (PROSPERO) (CRD42024521564). The risk of bias in the included studies was assessed by using the Joanna Briggs Institute (JBI) checklist. Two reviewers performed an electronic search on the Web of Science, Scopus, PubMed, and Embase databases for articles published up to the end of 2023.RESULTSThe electronic search resulted in 406 studies. After removing duplicates, 205 studies remained. Thirty-one studies (30 in vitro and 1 in vivo) were included and categorized into 6 types: AM material (type and composition), prosthetic factor (tooth type, restoration size, finish line, abutment taper), AM system (technique and printer), AM parameters (layer thickness, printing orientation), postprocessing (rinsing, postpolymerization), and aging.CONCLUSIONSThe accuracy of AM interim dental prostheses is affected by factors that include the AM material, prosthetic factors, the AM system, the AM parameters, postprocessing, and aging.","PeriodicalId":501672,"journal":{"name":"The Journal of Prosthetic Dentistry","volume":"85 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142261076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of altering the dispensing methods of resin-based cements on their physical and bonding qualities.","authors":"Alaa Aljohani,Rafiullah Bashiri,Adalberto B Vasconcellos,Abdulhaq A Suliman,Taiseer A Sulaiman","doi":"10.1016/j.prosdent.2024.08.023","DOIUrl":"https://doi.org/10.1016/j.prosdent.2024.08.023","url":null,"abstract":"STATEMENT OF PROBLEMDespite the advances in dental cements a significant gap remains in understanding how different dispensing and mixing techniques impact the physical properties of resin-based cements.PURPOSEThe purpose of this in vitro study was to investigate how the physical properties, shear bond strengths (before and after thermocycling), and film thickness of resin-based cements change based on the dispensing and mixing methods.MATERIAL AND METHODSEight different resin-based cements were evaluated, and specimens were prepared for each method (n=14) by following International Organization for Standardization (ISO) standards. The specimens were desiccated and immersed according to the ISO standard, and measurements were made to determine water sorption, solubility, mass change, and film thickness. Finally, specimens were thermocycled (5-55˚C for 20 000 cycles), and shear bond strength was evaluated. Statistical analysis was then performed with the 1- and 2-way ANOVA and the Tukey post hoc test (α=.05).RESULTSFor Variolink Esthetic (automix, 30.03 µg/mm3), the Wsp was 74.8% greater than Variolink II (hand mix, 17.18 µg/mm3) and 682.3% more soluble (P<.05). The least soluble resin-based cements were RelyX Unicem (3.83 µg/mm3), RelyX Unicem 2 (2.22 µg/mm3), and Variolink II (2.43 µg/mm3). PANAVIA SA automix and G-CEM LinkAce automix had twice the film thickness as their hand mixed counterparts (P<.05). Thermocycling reduced the shear bond strength for most resin-based cements. RelyX Unicem (3.94 MPa), Variolink II (8.52 MPa), and G-CEM Capsule (5.02 MPa) demonstrated significantly higher shear bond strength compared with their automix counterparts (P<.05).CONCLUSIONSThe dispensing methods were found to significantly impact the properties of resin-based cements. Variolink II demonstrated the lowest water sorption and highest shear bond strength among the cements tested. RelyX in both mixing methods exhibited a low solubility rate. Additionally, RelyX showed consistent thickness, regardless of the different dispensing methods.","PeriodicalId":501672,"journal":{"name":"The Journal of Prosthetic Dentistry","volume":"210 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142260855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of the optical and surface properties of monolithic CAD-CAM ceramics after simulated tooth-brushing.","authors":"Esra Kaynak Öztürk,Seçil Karakoca Nemli,Bilge Turhan Bal,Merve Bankoğlu Güngör","doi":"10.1016/j.prosdent.2024.08.010","DOIUrl":"https://doi.org/10.1016/j.prosdent.2024.08.010","url":null,"abstract":"STATEMENT OF PROBLEMMonolithic computer-aided design and computer-aided manufacturing (CAD-CAM) ceramics have various microstructures, but studies on their optical and surface properties after tooth-brushing are lacking.PURPOSEThe purpose of this in vitro study was to evaluate the changes in the color, gloss, surface roughness, and surface topography of different monolithic CAD-CAM ceramics after simulated tooth-brushing and compare the tested parameters of the different ceramics.MATERIAL AND METHODSNinety specimens were prepared with a 1.5-mm thickness from 9 different materials: monolithic zirconia (ZR), lithium disilicate ceramics (precrystallized and crystallized), zirconia reinforced lithium silicate ceramics (precrystallized and crystallized), interpenetrating network ceramic, leucite reinforced ceramic, feldspathic ceramic, and interpenetrating network nanoceramics (n=10). After mechanical polishing, the color parameters, gloss, and surface roughness values of each specimen were measured. Then, the specimens were subjected to 50 000 tooth-brushing cycles. After the brushing simulation, the color change (ΔE00) values were calculated, and the gloss and surface roughness values of the specimens were measured. Data were statistically analyzed with 2-way repeated measures of ANOVA and Bonferroni multiple comparison tests (α=.05).RESULTSThe brushing simulation and ceramic type affected the gloss and surface roughness values of the tested ceramics (P<.001). The surface roughness values of the ceramics increased after 50 000 cycles of simulated brushing. The surface gloss of the ZR group significantly increased after 50 000 cycles of simulated brushing (P<.001). Only the ceramic type affected the color change values (P<.001). The color change value (ΔE00) of ZR was the highest among the tested materials, exceeding the perceptibility threshold after 50 000 cycles, while the ΔE00 of the other materials was lower.CONCLUSIONSSimulated tooth-brushing affected the surface gloss and surface roughness of the tested materials. The ceramic type affected the surface gloss, surface roughness, and color change values. Except for the monolithic zirconia, the color change values were below the perceptibility threshold (0.8) in the experimental groups.","PeriodicalId":501672,"journal":{"name":"The Journal of Prosthetic Dentistry","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142260856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of axial displacement and torque loss of Morse-type prosthetic abutments of different angular tapers to their respective implants.","authors":"José Roberto de Freitas,Mariana Lima da Costa Valente,Elisabeth Helena Brazão,Izabela Cristina Maurício Moris,João Felipe Bonatto Bruniera,Yara Teresinha Corrêa Silva-Sousa,Edson Alfredo","doi":"10.1016/j.prosdent.2024.08.006","DOIUrl":"https://doi.org/10.1016/j.prosdent.2024.08.006","url":null,"abstract":"STATEMENT OF PROBLEMThe biomechanical stability of the implant-prosthesis assembly and its maintenance under function is a determining factor in the success of implant prosthesis rehabilitation, but studies of different angular tapers are lacking.PURPOSEThe purpose of this in vitro study was to evaluate the axial displacement and torque loss of prosthetic abutments with Morse-type connections of different angular tapers after thermomechanical cycling by using microcomputed tomography (µCT) and a digital torque wrench.MATERIAL AND METHODSEighteen Ø3.5×11.5-mm implants were embedded in polyvinyl chloride cylinders, and the 3 different types of abutments (n=6) with angular tapers of 11.5 degrees - Alvim Cone Morse (ACM-11.5), 16.0 degrees - Helix Gran Morse (HGM-16), and 24.0 degrees - Nobel Replace Conical Connection (NRC-24) were installed with the torque recommended by the manufacturers. To calculate the axial displacements of the abutments about the implants, zirconia maxillary canine crowns were fabricated using a computer-aided design and computer-aided manufacturing (CAD-CAM) system and cemented onto the abutments. Before and after thermomechanical cycling, the assemblies were scanned using microtomography (micro-CT) to assess axial displacement, and the torque losses were calculated after the abutments were finally unscrewed. A load of 100 N, frequency of 2 Hz, and 106 cycles with temperature variation of 5 °C to 55 °C were used for the thermomechanical cycling. Analysis of variance and the Tukey post hoc test (α=.05) were used for analysis.RESULTSA significant difference was observed between the abutments for axial displacement, measured after thermomechanical cycling (P=.002). The ACM-11.5 abutment showed the highest mean value (134.1 ±58.7 µm), different from HGM-16 (63.3 ±26.1 µm) (P=.013) and NRC-24 (42.7 ±8.7 µm) (P=.002); the 2 latter groups were similar to each other (P=.618). For the torque losses, no significant difference was found among the abutments (P=.928), but there were significant differences for the thermomechanical cycling (before and after) (P<.001) in that the loss of torque was greater after thermocycling.CONCLUSIONSThe smaller the taper angle of the Morse-type prosthetic abutment, the greater its axial displacement, and the thermomechanical cycling significantly reduced pretorque, regardless of taper.","PeriodicalId":501672,"journal":{"name":"The Journal of Prosthetic Dentistry","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142224110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prospective clinical-radiological study of the survival and behavior of short implants.","authors":"Carlos M Cobo-Vázquez,Pedro Molinero-Mourelle,Marta Romeo-Rubio,Blanca Flora Guisado-Moya,Jaime Del Río-Highsmith,Juan López-Quiles","doi":"10.1016/j.prosdent.2024.07.038","DOIUrl":"https://doi.org/10.1016/j.prosdent.2024.07.038","url":null,"abstract":"STATEMENT OF PROBLEMShort implants are a therapeutic alternative for edentulous patients with severe bone resorption. Differences in peri-implant bone loss and complications of short implants depending on the type of connection are unclear.PURPOSEThe main purpose of this clinical study was to evaluate the survival rate after 2 years of the short implants in the Oxtein system (Proclinic). Secondary objectives were to compare implant survival, peri-implant bone loss, peri-implant mucosal status, and associated complications in internal hexagonal connection versus external hexagonal connection implants.MATERIAL AND METHODSA randomized clinical trial was carried out in 14 patients with a mean age of 62.7 ±8.5 years, with a total of 61 Oxtein L35 and L6 Proclinic implants being placed at the Faculty of Dentistry. A descriptive analysis, simple binary logistic regression model using generalized estimating equations. and Kaplan-Meier survival analysis were carried out (α=.05).RESULTSImplant survival was 85.2% (52/61). Failure of all implants occurred before prosthetic loading; bleeding after probing occurred in 28 implants, being greater among external connection implants (57.6%) P=.025. The presence of plaque appeared in 36 of the implants, without statistically significant differences between external connection (72.8%) and internal connection (60.0%) (P>.05). A total of 28 implants had at least 2 mm of keratinized mucosa, without statistically significant differences between external connection (63.6%) and internal connection (35.0%) P=.200. A total of 8 complications (13.1%) were recorded, including connection fractures, screw fracture, framework fracture, and buccal fenestrations.CONCLUSIONSShort implants are a therapeutic solution to more complex surgical techniques. However, as lower survival has been reported, the characteristics of the implants and operator experience are important factors for their success.","PeriodicalId":501672,"journal":{"name":"The Journal of Prosthetic Dentistry","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142260857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Association of unreplaced missing posterior teeth with migraine or severe headaches in US adults: A cross-sectional population study.","authors":"Shifang Peng,Tao Yin,Mi He,Yundong Liu","doi":"10.1016/j.prosdent.2024.08.005","DOIUrl":"https://doi.org/10.1016/j.prosdent.2024.08.005","url":null,"abstract":"STATEMENT OF PROBLEMThe association between unreplaced missing posterior teeth and migraine has not been sufficiently reported.PURPOSEThe purpose of this cross-sectional study was to investigate the relationships between unreplaced missing posterior teeth and migraine or severe headaches.MATERIAL AND METHODSData from the US National Health and Nutrition Examination Survey 1999-2004 on 12 662 participants aged between 20 and 85 years were analyzed. The survey produced complete data on dentition examination, dietary intakes, and self-reported migraine or severe headaches. Weighted multivariable logistic regression analyses were performed (α=.05).RESULTSA total of 20.28% of the participants had migraine or severe headaches. After adjusting demographic, clinical, and dietary covariates, the total number of missing teeth was not significantly associated with migraine or severe headaches, and only having both anterior and posterior missing teeth was significantly associated with migraine or severe headaches. The odds ratio (OR) and confidence interval (CI) was 1.32(1.09, 1.60) (P=.007). A significantly positive correlation was found between the number of unreplaced missing teeth and migraine or severe headaches. An increase of 1 in the number of unreplaced missing teeth was associated with a 3% increase in migraine or severe headaches (OR and CI: 1.03(1.01, 1.06), P=.012). However, no significant relationship was found between replaced missing teeth and migraine or severe headaches (OR and CI: 1.00(0.99, 1.01), P=.800). Furthermore, unreplaced missing posterior teeth and both unreplaced anterior and posterior teeth were significantly related with more migraine or severe headaches, but no significant association of unreplaced teeth was found with migraine or severe headaches only in the anterior zone in the adjusted model (OR and CI: anterior teeth unreplaced: 0.90(0.43, 1.88), P=.800; posterior teeth unreplaced: 1.14(1.00, 1.30), P=.047; both anterior and posterior teeth unreplaced: 1.61(1.16, 2.22), P=.007). Because of the important association between posterior missing teeth and migraine or severe headaches, further analyses found a 1 tooth increase in unreplaced posterior teeth was related to a 4% increment in migraine or severe headaches (OR and CI: 1.04(1.01, 1.07), P=.017); however, the number of replaced posterior teeth was not associated with migraine or severe headaches (OR and CI: 1.00(0.99, 1.02), P=.900).CONCLUSIONSThe number of unreplaced missing posterior teeth was positively associated with migraine or severe headaches, while missing but restored posterior teeth were not associated with migraine or severe headaches in a US population.","PeriodicalId":501672,"journal":{"name":"The Journal of Prosthetic Dentistry","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142224111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of pulp chamber temperature during cementation with the preheated composite resin technique.","authors":"Hans A O Hatner,Rodrigo N Keigo,Camila S Caneschi,Jânio R J Aquino,Rodrigo C Albuquerque,Luis Fernando S A Morgan,Allyson N Moreira","doi":"10.1016/j.prosdent.2024.07.044","DOIUrl":"https://doi.org/10.1016/j.prosdent.2024.07.044","url":null,"abstract":"STATEMENT OF PROBLEMThe cementation technique using preheated composite resin requires high temperatures for optimal execution and may lead to increased and damaging intrapulpal temperatures. Whether the technique can lead to a temperature increase that might lead to necrosis of the pulp tissue is unclear.PURPOSEThe purpose of this in vitro study was to evaluate the temperature variation in the pulp chamber of bovine teeth with veneer-type preparations during veneer cementation using the preheated composite resin technique.MATERIAL AND METHODSA total of 103 bovine incisors were divided into 8 groups (n=10) and prepared for indirect veneers with different preparation depths: 2.0 mm, 1.5 mm, 1.0 mm, and 0.5 mm. Veneers were cemented on these preparations using 2 cementation protocols: preheated composite resin and photopolymerizable resin cement. The teeth were attached to a device containing a temperature sensor which was inserted into the pulp chamber to quantify the intrapulpal temperature variation produced during the cementation protocols. The data were analyzed using a statistical software program. The level of statistical significance for the analyses was with a confidence interval of 95%, sampling power of 80%, and a moderate effect size (0.36).RESULTSThe groups cemented with preheated composite resin and the groups with the greatest preparation depth had the highest mean intrapulpal temperature; the PHC2 group presented a mean ±standard deviation temperature increase of 5.70 ±2.14 °C.CONCLUSIONSThe heat generated by heating the resin contributed to the increase in intrapulpal temperature. Temperature variations were greater in deeper preparations, especially when preheated resin technique was used.","PeriodicalId":501672,"journal":{"name":"The Journal of Prosthetic Dentistry","volume":"60 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142224112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of machining damage on the surface roughness and flexural strength of CAD-CAM materials.","authors":"Hetaf Redwan,Yuwei Fan,Russell Giordano","doi":"10.1016/j.prosdent.2024.07.045","DOIUrl":"https://doi.org/10.1016/j.prosdent.2024.07.045","url":null,"abstract":"STATEMENT OF PROBLEMComputer-aided design and computer-aided manufacturing (CAD-CAM) materials are available for different types of restorations. However, the longevity of the material is affected by chipping, milling damage, flexural strength, and surface roughness, and a standard edge chipping test or standardized measurements are unavailable for monitoring edge chipping of rotary instrument-milled materials.PURPOSEThe purpose of this in vitro study was to analyze the surface roughness and edge chipping of different CAD-CAM diamond rotary instrument-milled dental material bars, correlate the effect of machining damage with material strength, and compare the flexural strength of rotary instrument-milled and sectioned CAD-CAM blocks.MATERIAL AND METHODSFive dental CAD-CAM materials were tested: lithium disilicate glass-ceramic (IPS e.max CAD), leucite-reinforced glass-ceramic (IPS Empress CAD); feldspathic porcelain (Vitablocs Mark II); feldspar ceramic-polymer infiltrated (Enamic), and composite resin (Lava Ultimate). Rectangular bars were designed and milled for each material (n=10). The surface roughness of the bars was measured using a profilometer. All edges of 3 selected bars were analyzed with scanning electron microscopy (SEM) for the chip length, depth, and area. The 3-point bend test was used to test the flexural strength of rotary instrument-milled and saw-cut bars with the same dimensions. Analysis of variance and the Tukey honestly significant difference post hoc test were used to determine the difference among the groups (α=.05).RESULTSIPS e.max CAD had the highest surface roughness and Lava Ultimate the lowest. Lava Ultimate had the smallest chipping factor and IPS Empress CAD the largest. The surface location significantly affected the chipping depth, area, and length (P<.05). A strong correlation was found between the decrease in flexural strength and the chipping length on the central tensile side of the rotary instrument-milled materials (R2=.62, P=.01), as well as the chipping depth (R2=.44, P=.01).CONCLUSIONSEdge chipping was significantly associated with the material type, milling surface, and edge location and strongly correlated with a decrease in flexural strength.","PeriodicalId":501672,"journal":{"name":"The Journal of Prosthetic Dentistry","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142224113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Clinical survival and complication rate of ceramic veneers bonded to different substrates: A systematic review and meta-analysis","authors":"Ahmed Yaseen Alqutaibi BDSc MDSc PhD, Samah Saker BDSc MDSc PhD, Mohammed Ahmed Alghauli BDSc MDSc, Radhwan S. Algabri BDSc MDSc PhD, Mohammed H. AbdElaziz BDSc MDSc PhD","doi":"10.1016/j.prosdent.2024.03.019","DOIUrl":"https://doi.org/10.1016/j.prosdent.2024.03.019","url":null,"abstract":"Evidence on the long-term clinical assessment and longevity of ceramic veneers bonded to different substrates is limited. The purpose of this systematic review and meta-analysis was to evaluate the effect of various substrates, including enamel, dentin, or an existing composite resin restoration, on the clinical survival and complication rates of ceramic veneers. The PubMed, Scopus, and the Cochrane Library electronic databases were searched, and related journals were hand searched without time or language restrictions to identify clinical trials that compared the survival rate and clinical complication rates when bonding ceramic veneers to different tooth substrates. The success rate of the included participants was estimated by the number of veneers that did not require a clinical intervention, and the survival rate by all veneers that did not fail absolutely. The risk difference (RD) with 95% confidence intervals (CIs) for dichotomous outcomes was used to quantify the intervention effect. Of 973 screened articles, 6 clinical studies were included. The survival and success rates varied depending on the bonding substrate. Enamel-bonded veneers had almost perfect rates of survival (99% with a range of 98% to 100%) and success (99% with a range of 98% to 100%). Veneers bonded to composite resin or surfaces with minimal dentin exposure had slightly lower survival rates (94% with a range of 91% to 97% and 95% with a range of 91% to 100%, respectively) and success rates (70% with a range of 60% to 80% and 95% with a range of 90% to 99%). Severe dentin exposure significantly decreased both survival rates (91% with a range of 84% to 98%) and success rates (74% with a range of 64% to 85%). The combined findings suggested that ceramic veneers bonded to enamel had fewer clinical complications (RD: −0.04; 95% CI: −0.09 to 0.02) and lower failure rates (RD: −0.13; 95% CI: −0.32 to 0.07) compared with those bonded to exposed dentin. Additionally, veneers attached to teeth with minimal dentin exposure were significantly less likely to require clinical interventions (RD: −0.16; 95% CI: −0.31 to −0.01) and had a reduced incidence of failure (RD: −0.08; 95% CI: −0.17 to 0.01) compared with those with severe dentin exposure. Ceramic veneers bonded to enamel showed higher survival and success rates with lower clinical incidences of complications and failure than those bonded to dentin or teeth with existing composite resin restorations.","PeriodicalId":501672,"journal":{"name":"The Journal of Prosthetic Dentistry","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140629249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of prosthetic management of congenital cleft lip and palate on the middle ear function of infants: A clinical trial","authors":"Kamel M.S. Aboelsayed BDS MS, Mahmoud Khamis Abdel Razek BDS MS PhD, Samir Assal BDS MS PhD, Ahmed M.A. Habib BDS MS PhD, Rana A. Negm BDS MS PhD","doi":"10.1016/j.prosdent.2024.02.032","DOIUrl":"https://doi.org/10.1016/j.prosdent.2024.02.032","url":null,"abstract":"Infants with a cleft palate often experience middle ear disease, a condition of great significance, and early prosthetic management of these infants is essential. However, any correlation between prosthetic palatal obturation and middle ear function is unclear. The purpose of this clinical trial was to assess whether prosthetic palatal obturation with a feeding appliance prevented or improved middle ear problems in infants with a cleft lip and palate. Ten infants with congenital cleft lip and palate (20 ears) were referred to the Prosthodontics department immediately after birth. Assessment of the middle ear function by tympanometry as well as hearing quality by auditory brainstem response (ABR) was conducted before the prosthetic treatment (control readings). The middle ear function and hearing quality was followed up after the prosthetic treatment every month until surgical palatal closure (tenth month). The Friedman test was applied to compare data from the various study periods. When the results were significant, the Dunn post hoc test was conducted to compare the control first week readings with those of the later periods (α=.05 for all tests). The preprosthetic readings of tympanometry in the first week were 90% Type A and 10% Type B for both right and left ears. Readings starting from the first to the fifth month revealed no statistically significant differences compared with the first week readings (>.05). However, tympanometry readings starting from the sixth month (20% Type A and 80% Type B) until the tenth month (90% Type B and 10% Type C) for both ears represented a statistically significant difference compared with the first week readings (≤.05). The preprosthetic readings of ABR in the first week showed that 90% of ears had normal hearing status and 10% had mild hearing loss. Readings starting from the first until the fifth month revealed no statistically significant differences compared with the first week readings (>.05). However, ABR readings starting from the sixth month (20% normal hearing, 70% mild hearing loss, and 10% moderate hearing loss) until the tenth month (0% normal hearing, 80% mild hearing loss, and 20% moderate hearing loss) for both ears revealed a statistically significant difference compared with the first week readings (≤.05). Prosthetic palatal obturation with a feeding appliance plays a role in delaying rather than preventing the occurrence of otitis media with effusion in infants with a cleft lip and palate and could reduce the need for ventilation tubes.","PeriodicalId":501672,"journal":{"name":"The Journal of Prosthetic Dentistry","volume":"51 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140580461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}