Restorative Dentistry and Endodontics修复牙科学与牙髓病学
Restorative Dentistry and Endodontics(英文缩写 RESTOR DENT ENDOD),ISSN 2234-7658,eISSN 2234-7666,中文译名:修复牙科学与牙髓病学 是一本学术期刊。本页汇总该期刊的最新影响因子、分区信息以及最新收录于 PubMed 的文献,帮助您快速了解期刊全貌。
发文量统计区间：2025-10-01 至 2026-09-30，按本站收录文献的发表日期统计。
期刊介绍
历年影响因子趋势
| JCR 数据年份 | 影响因子 | JCR 分区 |
|---|---|---|
| 2024 | 1.500 | Q3 |
| 2025 | 2.900 | Q2 |
Restorative Dentistry and Endodontics 最新收录文献
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1. Optimizing post-space drying: insights from an in vitro study using standardized three-dimensional-printed models.
PMID:日期:2026-09-18This study aimed to evaluate the efficiency of four post-space drying methods using standardized three-dimensional (3D)-printed resin tooth specimens, with emphasis on clinical implications for adhesive post retention. Maxillary central incisor models with post spaces of three diameters (1.4, 1.7, 2.0 mm) and three lengths (6.0, 9.0, 12.0 mm) were digitally designed and 3D-printed. A total of 81 specimens (n = 9 per post-space condition) were evaluated. Four drying methods were tested: air-syringe (AS), post-air-blow (PAB), paper-point (PP), and root-canal suction (RCS). Remaining moisture amount and content were quantified gravimetrically and analyzed using two-way and oneway analysis of variance with Tukey honestly significant difference (α = 0.05). Drying performance depended on both geometry and technique. AS consistently left greater remaining moisture, whereas PP and RCS showed stable, efficient drying. PAB was generally effective but technique-sensitive in long, narrow geometries. Standardized 3D-printed models enabled reproducible evaluation of post-space drying and revealed clinically relevant limitations of commonly used methods. Selecting drying protocols tailored to post-space geometry may reduce residual moisture prior to adhesive cementing.
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2. Influence of osteoporosis on tissue repair promoted by different dental materials: an in vivo study in a rat model.
2. 骨质疏松症对不同牙科材料促进组织修复的影响：一项大鼠模型体内研究PMID:日期:2026-09-18Osteoporosis is a prevalent metabolic disorder, and its impact on the biological response to dental materials is not fully understood. This study evaluated whether osteoporosis affects tissue repair promoted by MTA-Angelus (MTA) and an epoxy resin-based sealer containing calcium hydroxide (ER-Ca) after implantation in rat dental sockets. The null hypothesis was that osteoporosis would not impair alveolar tissue repair or bone formation. Seventy-two female rats were assigned to ovariectomized (OVX) or sham-operated (SHAM) groups (n = 36). After osteoporosis confirmation, right upper incisors were extracted, and polyethylene tubes containing MTA, ER-Ca, or left empty (control) were implanted in the sockets for 30 and 60 days (n = 6/group). Histology quantified inflammatory cells (ICs), fibroblasts (FBs), capsule thickness, and bone formation. Data were analyzed using Kruskal-Wallis and Dunn tests (p < 0.05). At 30 days, the material groups showed high IC counts (50-75 and >75 cells/field), whereas the control groups exhibited lower inflammatory scores. By 60 days, ICs decreased, FB counts increased (25-50 and 50-75 cells/field), and connective tissue thickness reduced. The OVX groups exhibited higher IC counts than SHAM at both time points (p < 0.05). MTA and ER-Ca showed comparable repair patterns. Bone formation occurred in SHAM groups treated with MTA and ER-Ca at 30 days (62.3 and 63.4 μm), and in all treated groups at 60 days, except controls. Osteoporosis delays inflammation resolution and new bone formation during alveolar healing. However, MTA and ER-Ca demonstrate favorable biocompatibility, supporting their clinical use in osteoporotic conditions. Further research should focus on optimizing materials and adjuvant therapies to enhance bone regeneration under compromised conditions.
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3. Comparative evaluation of tip diameter of different gutta-percha cones according to ISO 6877 measurement method and direct measurement method: an in vitro study.
PMID:日期:2026-09-17Accurate fitting of the gutta-percha master cone is essential to ensure apical sealing and the success of endodontic treatment. The purpose of this study was to analyze the dimensional variability of gutta-percha cones by assessing the conformity of their apical tip diameter to manufacturer-specified values, and to compare tip diameter (D0) determination according to ISO 6877 with a direct measurement method. Ten size 25/.06 and ten size 30/.04 gutta-percha cones from ten commercial brands were evaluated. The apical tip diameter was determined according to the ISO 6877 measurement protocol and compared with a direct measurement obtained using a profilometer. A substantial number of gutta-percha cones exhibited apical tip diameters that did not correspond to manufacturer-declared values. ISO 6877-based determination of D0 yielded heterogeneous results, likely due to morphological irregularities and taper variations. In contrast, direct measurement provided more homogeneous values that were generally closer to the nominal diameter. Cones manufactured using an injection molding process demonstrated the highest dimensional consistency. These findings highlight the need to revise the dimensional tolerances defined by ISO standard 6877. The adoption of more precise manufacturing and quality-control processes, together with the use of direct measurement as a complementary assessment tool, may improve the reliability of the nominal dimensions of gutta-percha cones.
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5. Effect of silane treatment and resin cement type on bond strength to three-dimensional printed restorative resin: an in vitro experimental study.
PMID:日期:2026-08-12This study aimed to evaluate the shear bond strength (SBS) of different resin cements to three-dimensional (3D)-printed restorative resins and to investigate the effects of silane treatment and substrate type on bonding performance. Four resin cements-three self-adhesive and one adhesive-were applied to two types of 3D-printed resins: ODS Permanent Resin (OPR) and Graphy Permanent Resin (GPR). Each substrate was tested with and without silane treatment. SBS was measured, and the failure modes were classified. Scanning electron microscopy (SEM) was used to analyze surface morphology of the 3D-printed substrates. Statistical analyses were performed to determine the effects of cement type, silane application, and substrate type on SBS. Resin cement type significantly influenced SBS, with Clearfil SA (Kuraray) exhibiting the lowest values, while the other cements demonstrated comparable performance. Silane treatment and substrate type did not show statistically significant effects on SBS. SEM analysis revealed smoother surfaces in OPR compared to GPR. Failure mode analysis showed predominantly cohesive failures for OPR, whereas GPR exhibited more adhesive and mixed failures. Resin cement selection plays a crucial role in achieving optimal bond strength to 3D-printed restorative resins. Silane application provided limited benefits for filler-deficient substrates, indicating that alternative surface treatments may be necessary.
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6. Influence of occlusal reduction on postoperative pain following single-visit root canal treatment in mandibular molars: a randomized controlled trial.
PMID:日期:2026-08-12Postoperative pain is a frequent complication following root canal treatment, and occlusal reduction (OR) has been suggested as a means to minimize such discomfort. However, existing evidence regarding its effectiveness remains inconclusive. This study aimed to evaluate the influence of OR on postoperative pain following single-visit root canal treatment in mandibular molars. It also examined whether preoperative pain intensity affects the postoperative response to OR. A total of 280 eligible patients with irreversible pulpitis in their first or second mandibular molars were enrolled and stratified into four groups based on their preoperative pain intensity using the visual analogue scale (VAS): 0, no pain; 1-3, mild; 4-7, moderate; and 8-10, severe. Each group was further allocated into OR or no occlusal reduction (NOR) subgroups using block randomization. Standardized endodontic procedures were performed under rubber dam isolation. Postoperative pain was recorded at 24 hours, 48 hours, and 1 week using the same VAS scale. Data were analyzed using the chi-square tests (p ≤ 0.05). Overall, a statistically significant difference between OR and NOR was found at the 48-hour interval, favoring OR. Stratified analysis showed significant pain reduction at 24 hours in the moderate pain category and near-significant differences in the severe pain group at both 24 hours and 48 hours. OR reduced early postoperative pain most noticeably in patients presenting with moderate to severe preoperative pain, whereas its effect was minimal in asymptomatic or mildly symptomatic cases.
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7. Practical considerations and methods for determining sample size to estimate a population mean: a narrative review.
PMID:日期:2026-08-12Sample size determination plays a crucial role in ensuring the validity and precision of research findings. This paper reviews the concept, rationale, and application of the sample size formula for estimating the mean of a population. It outlines the theoretical foundation, practical calculation steps, and appropriate contexts for its use in descriptive and estimation-based studies. This formula is often overlooked, as many researchers focus primarily on hypothesis testing frameworks rather than estimation approaches. Although it is a classical method, it remains highly relevant and essential in contemporary research. Therefore, this paper highlights the importance of this formula across various research settings and provides detailed guidance on how to compute the required sample size accurately. By doing so, it aims to support proper sample size planning, strengthen research design validity, and ultimately enhance the quality and credibility of scientific investigations.
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8. Prevalence of periapical abscesses in psoriasis patients: a retrospective cross-sectional study.
PMID:日期:2026-08-10This study was performed to assess the prevalence of acute periapical abscesses (PAs) in patients with psoriasis and to determine whether this relationship remains after adjusting for related systemic, behavioral, and treatment-related confounders. A retrospective hospital-based analysis of 2,108,676 patients was conducted using de-identified clinical data. Diagnoses of psoriasis and acute PA without sinus involvement were identified using standardized coding. The association between psoriasis and acute PAs was assessed using odds ratios (ORs) with 95% confidence intervals (CIs). Multivariable logistic regression analyses were performed to adjust for diabetes, nicotine dependence, alcohol related disorders, and biologic therapy use. Among 16,084 patients with psoriasis, 224 were diagnosed with acute PAs. Psoriasis was associated with a significantly higher prevalence of acute PAs than in the overall hospital population (OR, 2.21; 95% CI, 1.94-2.53; p < 0.0001). This association remained statistically significant after adjustment for diabetes (OR, 1.40), nicotine dependence (OR, 1.31), alcohol related disorders (OR, 1.89), and biologic therapy use (OR, 1.77). Female patients and white patients with psoriasis exhibited a higher prevalence of acute PAs compared with other demographic groups. Psoriasis is independently associated with an increased risk of acute PAs, even after accounting for common medical and behavioral risk factors. Greater awareness among clinicians and closer collaboration between dermatology and oral healthcare providers can facilitate earlier diagnosis and preventive treatment.
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9. Direct composite injection molding with bilayered three-dimensional-printed clear index: a fully digital workflow case report of post-orthodontic anterior tooth wear.
PMID:日期:2026-08-07This case report describes post-orthodontic direct composite restorations for anterior tooth wear using bilayered, three-dimensional (3D)-printed clear indices with a fully digital workflow. A patient with moderate incisal wear affecting the six maxillary anterior teeth underwent intraoral and facial scanning, followed by the creation of two digital wax-ups. Two sets of bilayered indices were fabricated, consisting of a rigid transparent outer shell for structural stability and a flexible inner liner for precise adaptation. Restoration was performed in two phases: alternate teeth were restored with the skipping-teeth first index, followed by restoration of the remaining teeth using the full-contour second index. The index design facilitated stable seating and controlled composite injection (Clearfil Majesty ES Flow Universal; Kuraray Noritake), which minimized material excess and simplified the finishing process while maintaining the planned morphology. The patient reported high satisfaction with comfort and treatment efficiency. At 15-month follow-up, all restorations remained intact with excellent marginal adaptation, surface quality, and esthetics. Within the limitations of this report, the use of bilayered 3D-printed clear indices suggests a feasible and conservative approach for managing anterior tooth wear.
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10. Classification proposal of obliterated canals based on the position of the target point and the caliber of the root canal.
PMID:日期:2026-08-04This study aimed to propose a classification system for calcified root canals based on the location of the target point or canal starting point and root canal lumen caliber to facilitate the evaluation of dynamically guided techniques in endodontic treatment. A retrospective analysis of eight cases with calcified root canals was conducted. Periapical radiographs and cone-beam computed tomography were used to classify cases based on root location and degree of obliteration. Clinical and radiographic outcomes were evaluated. Eight classification types are identified, ranging from non-obliteration and partial obliteration to total obliteration. The location of the root canal lumen varies from the pulp chamber to the apical third of the root. Guided endodontics with dynamic navigation has been demonstrated to be an effective treatment modality in cases of advanced obliteration, thereby substantiating its efficacy in complex scenarios. The proposed classification system provides a framework to understand the complexity of calcified root canals. Guided endodontics with dynamically guided techniques can be valuable in managing these challenging cases, particularly when the root canal lumen is in the apical third. Further studies are needed to validate the classification system and evaluate the long-term outcomes of the different treatment approaches.