American journal of dentistry最新文献

筛选
英文 中文
Wear behavior of different materials used for pit and fissure sealing. 用于封堵坑洞和裂隙的不同材料的磨损行为。
IF 1.4 4区 医学
American journal of dentistry Pub Date : 2023-12-01
Dilan Kopuz, Bilal Yaşa, Hüseyin Hatirli
{"title":"Wear behavior of different materials used for pit and fissure sealing.","authors":"Dilan Kopuz, Bilal Yaşa, Hüseyin Hatirli","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the wear of different materials used for pit and fissure sealing applied with non-invasive and invasive preparation techniques.</p><p><strong>Methods: </strong>A total of 170 molar teeth were divided into two main preparation groups (non-invasive and invasive), each consisting of eight subgroups after a control group was separated for wear standardization. Eight subgroups included: nano-filled flowable composite (Filtek Ultimate Flow), nanohybrid flowable composite (GrandioSo Flow), micro-hybrid flowable composite (Majesty Flow), resin-based unfilled fissure sealant (ClinPro Sealant), resin-based filled fissure sealant (Fissurit FX), resin-based highly filled fissure sealant (GrandioSeal), giomer-based fissure sealant (BeautiSealant), and glass-ionomer-based fissure sealant (Fuji Triage) (n= 10). The materials were applied according to the manufacturers' instructions. The initial data were obtained for wear analysis. The specimens were subjected to 2-year thermocycling and brushing simulations. Final data were obtained, and the wear characteristics were evaluated digitally. Data were statistically analyzed (P< 0.05).</p><p><strong>Results: </strong>There were no significant differences in wear between the non-invasive and invasive application groups (P< 0.05). In comparison of the materials, flowable composites presented the lowest wear (0.15 P± 0.13), and glass-ionomer-based fissure sealant presented the highest wear (0.66 P± 0.32).</p><p><strong>Clinical significance: </strong>The present study reported that the invasive preparation technique, which slightly abrades the enamel surfaces, did not adversely affect the wear of the sealant materials. Although the application of flowable composites as fissure sealants with a bonding agent is time-consuming and costly, it yielded better results in terms of wear.</p>","PeriodicalId":7538,"journal":{"name":"American journal of dentistry","volume":"36 6","pages":"281-286"},"PeriodicalIF":1.4,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138795784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparative evaluation of resin infiltration and fluoride varnish treatment for moderate to high caries risk adults: A randomized controlled trial. 对中高龋风险成人进行树脂浸润和氟化物清漆治疗的比较评估:随机对照试验。
IF 0.9 4区 医学
American journal of dentistry Pub Date : 2023-12-01
Sinem Kaya, Elif N Ercan Devrimci, Cigdem Atalayin Ozkaya, Hande Kemaloglu, Tijen Pamir
{"title":"Comparative evaluation of resin infiltration and fluoride varnish treatment for moderate to high caries risk adults: A randomized controlled trial.","authors":"Sinem Kaya, Elif N Ercan Devrimci, Cigdem Atalayin Ozkaya, Hande Kemaloglu, Tijen Pamir","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the arresting effect of micro-invasive (resin infiltration) and non-invasive (fluoride varnish) treatment options on non-cavitated proximal lesions in individuals with moderate to high risk of caries. In addition, the study evaluated the effect of repeated dental examinations and oral hygiene motivation on daily flossing, brushing frequency, dietary habits, and gingival status.</p><p><strong>Methods: </strong>The study was a randomized, controlled, prospective, and parallel-designed clinical trial. 60 adults were enrolled and randomly allocated in a 1:1 ratio to the treatment groups. Cariogram was used to assess the caries risk. The advising instruction for daily habits and oral hygiene by individual risk illustration was given to all participants. Two experienced examiners visually evaluated the severity and activity of the lesions by using the International Caries Detection and Assessment System and Nyvad Activity Assessment respectively. Radiographic scoring of the lesions was performed on bite-wing radiographs by the same examiners. The gingival index was used to check the gingival status of the patients at the initial and control sessions. After examination, resin infiltration (Icon) was applied to 30 subjects, while the other 30 received fluoride varnish (Clinpro White Varnish). The follow-up time was 18 months with 6-month intervals.</p><p><strong>Results: </strong>According to the Pearson Chi-Square test, there was no difference in the arresting effect of resin infiltration and fluoride varnish (P= 0.491). Both treatment groups exhibited a notable arresting effect on non-cavitated lesions, achieving a success rate of 98% (55 out of 56) during the 18-month evaluation period. However, one lesion of a subject who received resin infiltration was observed to progress from an E2 score to cavitation. Furthermore, at the end of 18 months, the subjects' motivation for oral hygiene had increased, and gingival index score decreased from 2 to 1 in 15% of the subjects.</p><p><strong>Clinical significance: </strong>Both resin infiltration and fluoride varnish yielded satisfactory results in the treatment of non-cavitated proximal lesions in individuals with moderate to high risk of caries. Repeated motivational instructions were beneficial for patients in maintaining their daily oral hygiene habits and gingival health.</p>","PeriodicalId":7538,"journal":{"name":"American journal of dentistry","volume":"36 6","pages":"303-309"},"PeriodicalIF":0.9,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138795752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evidence-based systemic antibiotic prescription in periodontal and dental implant procedures: A mini-review. 牙周和种植牙手术中的循证全身抗生素处方:微型综述。
IF 1.4 4区 医学
American journal of dentistry Pub Date : 2023-12-01
Paula Yunes Fragoso, Ninoska Abreu-Placeres
{"title":"Evidence-based systemic antibiotic prescription in periodontal and dental implant procedures: A mini-review.","authors":"Paula Yunes Fragoso, Ninoska Abreu-Placeres","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate and summarize the available scientific evidence regarding antibiotic prescription protocols in periodontal and dental implant procedures.</p><p><strong>Methods: </strong>A bibliographic search was conducted in PubMed, ScienceDirect, Scielo, Cochrane Library, EBSCOhost and Google Scholar up to February 2023. Manual and electronic searches were conducted, including publications in English. Medical Subject Headings (MeSH), free text terms and Boolean operators were used.</p><p><strong>Results: </strong>Antibiotic prescription protocols have been restricted due to antimicrobial resistance. While for certain clinical circumstances there are guidelines with clear and unanimous criteria for appropriate antibiotic use, for other conditions evidence showed an insufficiency of available literature and the persistence of crucial issues where no consensus has been reached.</p><p><strong>Clinical significance: </strong>This mini-review summarizes the most up-to-date recommendations regarding the prescription of antibiotics in periodontal and dental implant procedures in order to guide evidence-based decision-making.</p>","PeriodicalId":7538,"journal":{"name":"American journal of dentistry","volume":"36 6","pages":"287-296"},"PeriodicalIF":1.4,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138795764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of simplified or multi-step polishing techniques on roughness and color stability of resin composites. 简化或多步骤抛光技术对树脂复合材料粗糙度和颜色稳定性的影响。
IF 1.4 4区 医学
American journal of dentistry Pub Date : 2023-12-01
Yamil A Eguivar, Fabiana M-G França, Cecilia P Turssi, Roberta T Basting, Waldemir F Vieira-Junior
{"title":"Effect of simplified or multi-step polishing techniques on roughness and color stability of resin composites.","authors":"Yamil A Eguivar, Fabiana M-G França, Cecilia P Turssi, Roberta T Basting, Waldemir F Vieira-Junior","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the impact of simplified or multi-step polishing techniques on the roughness, color, and susceptibility to staining of different resin composites.</p><p><strong>Methods: </strong>Discs (Ø6 mm x 2 mm) were obtained from different resin composites [nanofilled (Z350XT), suprananofilled (Estelite Omega), and nanohybrid (Forma)]. The specimens (n= 15) were submitted to a simplified protocol using abrasive discs (Sof-Lex) and spiral discs (Diacomp Plus Twist), or a multi-step protocol using abrasive discs (Sof-Lex), abrasive points (Jiffy), silicon carbide brush and felt disc with diamond pastes (Diamond Polish). The specimens were evaluated initially for roughness (Ra) and color (CIEL*a*b*, CIEDE 2000), after completing the polishing protocol, and after exposure to a coffee solution (pH= 5.01). The data were analyzed according to the variables, using generalized linear models, and the Friedman, Nemenyi, Kruskal-Wallis, Dunn, and Mann-Whitney tests (α= 0.05).</p><p><strong>Results: </strong>The nanohybrid resin composite showed an increase in Ra following use of both polishing methods (P= 0.038). Both techniques promoted an increase in L* values after polishing; however, the general color changes (ΔEab and ΔE₀₀) were greater after the multi-step polishing (P< 0.05). After immersion in coffee, the multi-step polished groups of the nanohybrid and suprananofilled resin composite showed higher L* values than the simplified polishing groups (P= 0.023), and the nanofilled resin composite showed higher ΔEab and ΔE₀₀ values than the other resin composites, regardless of the polishing technique (P< 0.05).</p><p><strong>Clinical significance: </strong>The choice of the resin composite had a greater effect on roughness, color stability and susceptibility to staining than the polishing technique. However, luminosity after coffee staining was higher with the multi-step polishing technique.</p>","PeriodicalId":7538,"journal":{"name":"American journal of dentistry","volume":"36 6","pages":"274-280"},"PeriodicalIF":1.4,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138795756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The effect of adhesive resin cement, obturation material and root dentin location on the retention of glass fiber-reinforced composite resin posts. 粘接树脂水泥、封闭材料和根部牙本质位置对玻璃纤维增强复合树脂桩固位的影响。
IF 1.4 4区 医学
American journal of dentistry Pub Date : 2023-12-01
Zakereyya Sm Albashaireh, Buthaina Y Bashaireh, Bilal M El Masoud
{"title":"The effect of adhesive resin cement, obturation material and root dentin location on the retention of glass fiber-reinforced composite resin posts.","authors":"Zakereyya Sm Albashaireh, Buthaina Y Bashaireh, Bilal M El Masoud","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Purpose: </strong>To assess the effects of adhesive resin cement, obturation material and dentin location on the retention of glass fiber-reinforced resin composite (FRRC) posts.</p><p><strong>Methods: </strong>60 root canals in single rooted teeth were obturated with three different protocols (n= 20), including no obturation material (Control), GuttaFlow and Gutta-percha. Spaces were prepared for glass (FRCR) posts. Subgroups of the roots (n=10) were allocated for receiving posts luted with RelyX Unicem or Calibra resin cements. The specimens were mounted in plastic molds using epoxy resin. They were sectioned transversely to obtain three 1 mm-thick coronal, middle and apical slabs. Post retention was measured using a universal testing machine. The push-out test was performed at a crosshead speed of 0.5 mm/minute until post dislodgement occurred. Dislodged posts were examined microscopically to evaluate the mode of failure. Data were analyzed using univariate tests to reveal the effects of dependent variables and their interactions on post retention. Tukey test was used to determine significant differences for post retention in obturation material and dentin location groups. P-values ≤ 0.05 were considered significant.</p><p><strong>Results: </strong>The adhesive resin cement, obturation material, dentin location and cement obturation materials interaction affected post retention. The mean bond strength was higher for posts cemented with RelyX Unicem than for those cemented with Calibra resin cements. Post retention in coronal locations was significantly superior to middle or apical locations. The failure mode was primarily mixed.</p><p><strong>Clinical significance: </strong>When using RelyX Unicem cement for luting glass fiber-reinforced root canal posts, complete removal of all obturation materials from the post space significantly improves the retention. Although Calibra cement is less technique sensitive than RelyX Unicem resin cement, it produces notably lower retention of fiber-reinforced glass root canal posts.</p>","PeriodicalId":7538,"journal":{"name":"American journal of dentistry","volume":"36 6","pages":"297-302"},"PeriodicalIF":1.4,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138795777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Longterm abrasive and erosive effect of whitening toothpaste on dentin surface. 美白牙膏对牙本质表面的长期磨损和侵蚀作用
IF 1.4 4区 医学
American journal of dentistry Pub Date : 2023-12-01
Jae-Heon Kim, Soyeon Kim, Bo-Hyoung Jin, Franklin Garcia-Godoy, Young-Seok Park
{"title":"Longterm abrasive and erosive effect of whitening toothpaste on dentin surface.","authors":"Jae-Heon Kim, Soyeon Kim, Bo-Hyoung Jin, Franklin Garcia-Godoy, Young-Seok Park","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the amount of dentin loss following immersion in or toothbrushing with whitening toothpaste (WT) containing hydrogen peroxide (HP) and citric acid (CA). Additionally, the amount of dentin loss after brushing with a WT alone or in combination with a conventional toothpaste was assessed, and the effects of HP and CA solutions on the dentin surface were investigated.</p><p><strong>Methods: </strong>Bovine dentin specimens (n= 350) were randomly assigned to seven solutions of various compositions as toothpaste: The specimens assigned to each solution were then further divided into five treatment groups (n=10 each) : Group A = 1-hour immersion in each solution (ES); Group B = 10,000 brushing in ES; Group C = 1-hour immersion in ES + 10,000 brushing in ES; Group D = 1-hour immersion in ES + 10,000 brushing in reference slurry (RS); Group E = 10,000 brushing in ES + 10,000 brushing in RS. The amount and pattern of dentin loss were determined, and the surfaces were observed using noncontact profilometry.</p><p><strong>Results: </strong>The WT (pH 5.0) caused lower dentin loss than RS after a single brushing cycle; however, the extent of dentin loss after 1 hour of immersion in the WT was significantly greater than that in the RS. Among the specimens treated with WT, a significant difference in dentin loss was observed between Group C and Groups D and E (P< 0.05) but not between Groups D and E. The surfaces exposed to CAS1, CAPB, and WT exhibited U-shaped patterns of dentin loss after brushing or immersion, whereas a wedge-shaped pattern was observed in those that underwent brushing with the RS.</p><p><strong>Clinical significance: </strong>The effects (dentin abrasion) of a whitening toothpaste containing hydrogen peroxide and citric acid when used in combination with a conventional toothpaste were similar to those seen with the continuous use of a conventional toothpaste alone.</p>","PeriodicalId":7538,"journal":{"name":"American journal of dentistry","volume":"36 6","pages":"267-273"},"PeriodicalIF":1.4,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138795770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of the multi-channeled oral irrigation (MCOI) unit in preventing dental plaque formation and gingivitis: A randomized controlled trial. 多通道口腔冲洗装置预防牙菌斑形成和牙龈炎的效果:一项随机对照试验。
IF 0.9 4区 医学
American journal of dentistry Pub Date : 2023-10-01
Julie Y Kim, Eun-Bin Bae, Eric C Sung, Thomas Lee, Paulo Camargo, Ki-Hyuk Shin, Hyun J Kim, Woong-Beom Pyun, Reuben H Kim
{"title":"Effects of the multi-channeled oral irrigation (MCOI) unit in preventing dental plaque formation and gingivitis: A randomized controlled trial.","authors":"Julie Y Kim, Eun-Bin Bae, Eric C Sung, Thomas Lee, Paulo Camargo, Ki-Hyuk Shin, Hyun J Kim, Woong-Beom Pyun, Reuben H Kim","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the efficacy of COMORAL a new multi-channeled oral irrigation (MCOI) unit with pulsating water jet, in plaque score reduction and gingivitis.</p><p><strong>Methods: </strong>This was a single-blinded clinical randomized controlled trial (NCT05031260). Forty-two healthy subjects between 18 to 35 years old were initially recruited, and the control group (n = 20) and the intervention group (n = 17) were randomly assigned. Both groups were asked to brush their teeth one or two times a day without any supplementary oral hygiene products while the intervention group used COMORAL 3 times a day, 5 days a week. Clinical indices including gingival index (GI), plaque index (PI), bleeding on probing (BOP), pocket depth (PD), gingival recession (GR), and clinical attachment loss (CAL) were obtained at the baseline (D0), day 14 (D14), and day 28 (D28). Saliva was collected to examine the presence of periodontal pathogens. The repeated measures analysis of variance or generalized estimating equation was used to compare the interaction between groups and time points. The independent t-test or Mann-Whitney test were used for intergroup differences at each time point.</p><p><strong>Results: </strong>At V0, PI, GI, BOP, and PD scores showed no differences between the two groups. At V1 and V2, these scores showed significant difference between two groups (P < 0.05) such that the intervention group showed gradual decreases while the control group showed no change. There were no differences in GR, CAL, and periodontal pathogens between the two groups. COMORAL showed improvement in reducing gingival inflammation and dental plaque formation adjuvant to routine toothbrushing in healthy adults.</p><p><strong>Clinical significance: </strong>The results of this study can be useful to clinicians when selecting oral hygiene devices that can help improve patients' routine oral hygiene practice and their overall oral health.</p>","PeriodicalId":7538,"journal":{"name":"American journal of dentistry","volume":"36 5","pages":"215-221"},"PeriodicalIF":0.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49673240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of cold atmospheric plasma versus conventional surface treatments on the bond strength between CAD-CAM zirconia and resin cement. 冷常压等离子体与常规表面处理对CAD-CAM氧化锆与树脂水泥粘结强度的影响。
IF 0.9 4区 医学
American journal of dentistry Pub Date : 2023-10-01
Gülay Kamiş, Bekir Eser
{"title":"Effect of cold atmospheric plasma versus conventional surface treatments on the bond strength between CAD-CAM zirconia and resin cement.","authors":"Gülay Kamiş, Bekir Eser","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the shear bond strength of two different resin cements to zirconia after treatment with cold atmospheric pressure plasma (CAPP) and other surface modification methods.</p><p><strong>Methods: </strong>189 specimens fabricated from Vita YZ-HT zirconia discs were divided into nine surface treatment groups: (1) Untreated (U), (2) Sandblasting (S), (3) Laser (L), (4) Plasma (P), (5) Primer (PR), (6) Sandblasting + Primer (SPR), (7) Laser + Primer (LPR), (8) Plasma + Primer (PPR), (9) Laser + Plasma + Primer (LPPR). Surface roughness (Ra) and contact angles were measured (n= 10 each), and scanning electron microscopy (SEM) and energy dispersive spectrometry (EDS) analyses were performed (n= 1 each). Specimens were cemented with RelyX Ultimate Clicker adhesive resin cement or Theracem self-adhesive resin cement. The specimens were subjected to shear bond strength (SBS) test. Modes of failure were examined under a stereomicroscope and visualized by SEM.</p><p><strong>Results: </strong>The S, PR, SPR, PPR and LPPR groups showed significantly greater Ra values than the U group. Significantly lower contact angles were observed in the S, P and L groups versus the U group. The SBS values of SPR, PPR and LPPR groups were significantly greater than those of the U group. CAPP can improve zirconia-resin cement bond strength by increasing the wettability of zirconia surfaces pretreated with the 10-methacryloyloxydecyl dihydrogen phosphate (MDP) primer.</p><p><strong>Clinical significance: </strong>The use of cold atmospheric pressure plasma in combination with a primer is a promising clinical procedure for improving resin cement bonding to zirconia surface.</p>","PeriodicalId":7538,"journal":{"name":"American journal of dentistry","volume":"36 5","pages":"251-259"},"PeriodicalIF":0.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143497796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of cold atmospheric plasma versus conventional surface treatments on the bond strength between CAD-CAM zirconia and resin cement. 冷大气等离子体与传统表面处理对CAD-CAM氧化锆和树脂水泥之间结合强度的影响。
IF 0.9 4区 医学
American journal of dentistry Pub Date : 2023-10-01
Gülay Kamiş, Bekir Eser
{"title":"Effect of cold atmospheric plasma versus conventional surface treatments on the bond strength between CAD-CAM zirconia and resin cement.","authors":"Gülay Kamiş, Bekir Eser","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the shear bond strength of two different resin cements to zirconia after treatment with cold atmospheric pressure plasma (CAPP) and other surface modification methods.</p><p><strong>Methods: </strong>189 specimens fabricated from Vita YZ-HT zirconia discs were divided into nine surface treatment groups: (1) Untreated (U), (2) Sandblasting (S), (3) Laser (L), (4) Plasma (P), (5) Primer (PR), (6) Sandblasting + Primer (SPR), (7) Laser + Primer (LPR), (8) Plasma + Primer (PPR), (9) Laser + Plasma + Primer (LPPR). Surface roughness (Ra) and contact angles were measured (n= 10 each), and scanning electron microscopy (SEM) and energy dispersive spectrometry (EDS) analyses were performed (n= 1 each). Specimens were cemented with RelyX Ultimate Clicker adhesive resin cement or Theracem self-adhesive resin cement. The specimens were subjected to shear bond strength (SBS) test. Modes of failure were examined under a stereomicroscope and visualized by SEM.</p><p><strong>Results: </strong>The S, PR, SPR, PPR and LPPR groups showed significantly greater Ra values than the U group. Significantly lower contact angles were observed in the S, P and L groups versus the U group. The SBS values of SPR, PPR and LPPR groups were significantly greater than those of the U group. CAPP can improve zirconia-resin cement bond strength by increasing the wettability of zirconia surfaces pretreated with the 10-methacryloyloxydecyl dihydrogen phosphate (MDP) primer.</p><p><strong>Clinical significance: </strong>The use of cold atmospheric pressure plasma in combination with a primer is a promising clinical procedure for improving resin cement bonding to zirconia surface.</p>","PeriodicalId":7538,"journal":{"name":"American journal of dentistry","volume":"36 5","pages":"251-259"},"PeriodicalIF":0.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49673239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparison of accuracy and reliability of CBCT and 3D laser scanner in the volumetric assessment of the root canal space. CBCT和3D激光扫描仪在根管间隙体积评估中的准确性和可靠性比较。
IF 1.4 4区 医学
American journal of dentistry Pub Date : 2023-10-01
Anchu R Thomas, Htoo Htoo K Soe, Christine S Silva, Harpeven Kaur, Loshanii D Ganendrah, Lynette M Gomez
{"title":"Comparison of accuracy and reliability of CBCT and 3D laser scanner in the volumetric assessment of the root canal space.","authors":"Anchu R Thomas,&nbsp;Htoo Htoo K Soe,&nbsp;Christine S Silva,&nbsp;Harpeven Kaur,&nbsp;Loshanii D Ganendrah,&nbsp;Lynette M Gomez","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Purpose: </strong>To compare the accuracy and reliability of cone-beam computed tomography (CBCT) and laser scanner in measuring minor volume changes such as the root canal space.</p><p><strong>Methods: </strong>35 maxillary incisors were endodontically prepared. A dimensionally stable silicone material was injected into the root canal space and scanned with CBCT. The root canal volume was measured using Romexis 3.0.1 R software. Replicas were carefully removed from the teeth and scanned using an extraoral laser scanner. These images were exported to the Rhinoceros software for volume measurement. The volume of each replica was also assessed using the gravimetric method. To determine the accuracy, the volume obtained from both devices was compared with the gravimetric method. Statistical analysis was done using a paired t-test. The reliability was assessed using the intraclass correlation coefficient.</p><p><strong>Results: </strong>There was no statistically significant difference between the mean volume of CBCT 27.04 ± 7.25 mm³ and the mean volume of the gravimetric method 27.87 ± 7.17 mm³ (P< 0.05). A statistically significant difference was seen with the laser scanner at 25.31 ± 6.89 mm³ and the gravimetric method at 27.87 ± 7.17 mm³ (P< 0.05). CBCT showed a good degree of agreement (ICC 0.899), while the laser scanner showed a moderate degree of agreement (ICC 0.644) with the gravimetric method. CBCT proved accurate and reliable in measuring minor volumes like the root canal space, ideally in the range of 20-25 mm³. The laser scanner presented acceptable reliability.</p><p><strong>Clinical significance: </strong>The laboratory data showed satisfactory outcomes, providing an evidence-based approach and potentially motivating clinicians to integrate cone-beam computed tomography for volume analysis into clinical practice. The accuracy and reliability of laser scanners for small-volume analysis have not previously been evaluated. Consequently, the findings from this study warrant further clinical investigations.</p>","PeriodicalId":7538,"journal":{"name":"American journal of dentistry","volume":"36 5","pages":"246-250"},"PeriodicalIF":1.4,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49673191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信