Clinical, Cosmetic and Investigational Dentistry最新文献

The rise of phytotherapy has enabled the utilization of various plant species for medicinal purposes, such as Cymbopogon citratus (C. citratus), providing solutions for oral pathologies, such as oral candidiasis. The PubMed, Web of Science, Scopus, and SciELO databases were searched. In vivo and in vitro studies on the action of C. citratus against oral candidiasis were included, and ROBINS-I was used to determine study quality and risk of bias. The search yielded 1922 articles, of which 10 met the inclusion criteria. Limited scientific evidence exists regarding the use of C. citratus for oral candidiasis. However, studies have indicated its potent antifungal effects. Further studies, preferably clinical trials, are necessary to confirm this effect and to enable its clinical use as a therapeutic option.

Purpose: This study investigated the influence of nanohydroxyapatite-containing (nanoHAP) lozenge on plaque pH following sucrose intake.

Patients and methods: Sixteen adult subjects were enrolled in this double-blind crossover study composed of four interventions: (1) 10% w/v sucrose solution, (2) 10% w/v sorbitol solution, (3) nanoHAP lozenge, and (4) 10% w/v sucrose solution challenge followed by nanoHAP lozenge. Following the determination of each subject's resting plaque pH, the pH was measured at different time intervals from 3 to 30 minutes from the start of intervention, with 7 days interval between the applications of different interventions. The data were analyzed using the analysis of variance and Tukey's test (α < 0.05).

Results: While sorbitol produces no change in plaque pH, nanoHAP-lozenge increased the plaque pH from a baseline of 7.0 ± 0.3 (mean ± sd) to 7.8 ± 0.2 (mean ± sd) within 30 minutes. Sucrose lowered the plaque pH from a baseline of 7.0 ± 0.4 (mean ± sd) to the lowest minimum of 5.1 ± 0.1 (mean ± sd) at the 7^th minute, rising above the critical pH of enamel dissolution (5.5) at 12^th minute and the baseline pH in more than 30 minutes. With lozenge intervention following sucrose challenge, plaque pH rose to 5.5 in 8 min, and to the baseline pH in 24 min. The cH area (Hydrogen ion concentration area) produced by sucrose (1.82 sq. units) was significantly (p < 0.05) greater than that produced when sucrose was challenged with lozenge (0.48 sq. units).

Conclusion: Nanohydroxyapatite-containing lozenge increased plaque pH, reduced plaque pH drop in the presence of sucrose, and facilitated the rapid recovery of plaque pH after sucrose intake.

Purpose: Diagnosing oral and maxillofacial lesions is a multi-step, multidisciplinary process. If a clinical diagnosis is achievable, then a histopathological diagnosis is indicated to support and confirm the diagnosis. Histopathological examination of tissue biopsies is therefore an essential part of the diagnosis and/or treatment plan. The purpose of this study was to investigate the agreement between the clinical and histopathological diagnoses of oral and maxillofacial lesions and the patient, lesion, and healthcare provider factors that may affect this agreement.

Patients and methods: This was an observational, cross-sectional study of all patients who had been referred to the Oral Pathology Central Laboratory at the Faculty of Dentistry and University Dental Hospital at King Abdulaziz University in Jeddah, Saudi Arabia, between 2018 and 2022 for diagnosis of oral and maxillofacial lesions. Data extracted included information about the referring dental provider such as their clinical experience (number of years), specialty, certification, and education. Agreement between the clinical and histopathological diagnoses was evaluated, and logistic regression was used to assess provider characteristics associated with the accuracy of diagnosis.

Results: The clinical and pathological diagnoses were concordant in 44.1% (n=378) of cases, and concordance was highest for odontogenic tumors (72.7%, n=24), significantly higher than for inflammatory lesions (37.3%, n=111). The anatomical locations with the highest diagnostic accuracy were the ventral surface of the tongue (71.4%, n=5), followed by the lips (52.6%, n=20). Patient age and sex and the dentist's years of experience were not associated with diagnostic agreement (p=0.2, p=0.9, and p=0.08, respectively). However, concordant diagnoses were significantly associated with the dentist's rank (p=0.02) and specialty (p=0.01). Clinical diagnoses made by oral surgeons at the time of biopsy were 1.6-times more likely (p=0.01) to agree with the pathological diagnosis compared with those made by other specialties when controlling for education, certification, and years of experience.

Conclusion: These data are a reminder that a clinical diagnosis alone is not sufficient to secure the final diagnosis and to plan treatment. Histopathological examination remains essential for most oral and maxillofacial lesions.

Background: This study aimed to investigate the fracture behavior of upper premolars with deep MOD cavities that were restored with Ribbond resin-reinforced fibers (FRCs) placed in different orientations.

Methods: A total of 54 extracted maxillary premolars were randomly divided into nine groups. The experimental groups underwent MOD cavity preparation with or without root canal treatment, followed by FRCs placed in the pulpal floor, proximal walls, or both. Fracture resistance was tested using an Instron Machine. The samples were visually inspected to analyze the fracture mode.

Results: The highest fracture resistance was observed in intact teeth (1299.98 ± 284.66 MPa). Placing Ribbond fibers in the pulpal floor (1155.86 ± 244.21 MPa) or the proximal walls (1077.56 ± 260.60 MPa) significantly improved fracture resistance (p= <0.05), compared to cavities restored with only resin composite (804.58 ± 93.34 MPa). However, placing Ribbond fibers in both the pulpal and proximal walls did not enhance fracture resistance. In the MOD-RCT groups, fracture resistance was improved only when Ribbond fibers were placed in the pulpal floor and the proximal walls. Fracture mode analysis revealed a combined fracture in most of the groups.

Conclusion: This study concluded that using FRCs significantly improved the fracture resistance of MOD cavities in premolars and revealed that the placement site could be a determinant factor.

Medication-related osteonecrosis of the jaw (MRONJ) can be a debilitating complication that can arise in patients who took or are taking antiresorptive (including bisphosphonates) or antiangiogenic agents, leading to visible bone or a fistula that continues for more than eight weeks, without any history of radiotherapy. This clinical case aimed to describe the treatment of MRONJ with topical active oxygen therapy using blue^®m oral gel. A 63-year-old female patient that had been taking weekly sodium alendronate (70 mg) for four years by oral via, presented discomfort and implant movement in the #46 region, by that underwent surgical extraction of the implant. After three months the patient returned and was diagnosed with MRONJ. Initially, conventional therapies were performed, including surgical debridement and antibiotic therapy, but without success. The patient still had clinical signs of osteonecrosis six months after the implant extraction. The entire socket was then filled with blue^®m oral gel by topical application. The patient was instructed to continue applying the gel to the region every 8 hours for 15 days. After this period, the patient returned, and it was observed that the wound was in the healing process, with the presence of epithelialized tissue and without bone exposure. The 2-year clinical follow-up showed the lesion had healed entirely, and a new implant was installed. After the osseointegration period, the final prosthesis was placed. The patient remains under clinical follow-up. Therefore, it can be concluded that the application of blue^®m oral gel in this clinical case assisted in the recovery of the osteonecrosis lesion.

Purpose: This in vitro study investigated the effects of dietary solvents on the microhardness and color stability of CAD/CAM provisional restorations compared to conventional materials.

Methods: Disc-shaped specimens (n=200) were fabricated from self-cured acrylic resin, two 3D-printing resins (FormLabs, NextDent), and a milled material (TelioCAD). Randomization assigned specimens (n=10/group) to immersion solutions: artificial saliva, citric acid, heptane, coffee, and tea. Microhardness and color stability were evaluated. One-way and three-way ANOVA with Tukey's post hoc test analyzed the data.

Results: Dietary solvents significantly reduced the surface microhardness of all tested materials (p<0.05). Unpolished surfaces exhibited greater color changes compared to polished ones (p<0.05) across all materials. Coffee and tea induced the most substantial reductions in hardness and the most significant color alterations (p<0.05), whereas saliva and citric acid had minimal effects.

Conclusion: Milled provisional restorations exhibited superior hardness and color stability. Dietary solvents significantly affected material properties over time, highlighting the importance of material selection for clinical applications.

This case report details a pulp revascularization treatment administered to a mature permanent tooth exhibiting pulp necrosis. A 22-years old female patient complained of the recurrence of a sinus tract labial of the maxillary right central incisor; which was tender on biting. Diagnosis of pulp necrosis and symptomatic apical periodontitis. Preoperative periapical and CBCT radiographs showed root with wide apical foramen and large apical radiolucency. Pulp revascularization procedure was performed using 1.3% sodium hypochlorite irrigation, 17% Ethylenediaminetetraacetic acid irrigation, and calcium hydroxide intracanal dressing for 2 weeks. During the last visit, intentional bleeding was induced, collagen matrix was set over the blood clot, 2 mm of mineral trioxide aggregate and glass-ionomer filling was placed. A year of follow-up, the tooth showed no signs or symptoms and responded normally to the sensibility tests. Intra-oral periapical radiograph and the CBCT showed significant reduction in the periapical lesion's size, slight reduction in the apical foramen's size, and hard radiopaque material deposition at the root's middle third.

Professional tooth whitening in the dental office is a popular cosmetic procedure and is performed under carefully monitored conditions. This allows the controlled application of a relatively high concentration of bleaching ingredients based on hydrogen peroxide or peroxide derivatives which produce reactive oxygen species, and consequently induce enamel erosion, alteration of the microhardness of the teeth, irritation of the gums, pain or post bleach sensitivity. This short communication describes the successful and reliable application of a new professional tooth whitening technique using a novel phthalimido peroxycaproic acid complex while avoiding reactive oxygen species.

Background: Gingivectomy has been the preferred method since the findings in 1884. It evolved from "blind" subgingival scaling to "the excision of the soft tissue". The use of these techniques is no longer mandatory in clinical situations; therefore, researchers have searched for numerous publications that have been registered regarding gingivectomy. This research aims to fill the niche area by assessing more about gingivectomy and it's trend among the periodontology topic of discussion.

Methods: Descriptive and analytical observation by evaluating the result of the VOS viewer mapping and calculation throughout the bibliographic data from publications obtained from SCOPUS in July 2022.

Results: There are 660 publications from six types of publication. Related keywords are compiled and visualized by network mapping. There is a significant gap among the contributing countries in the number of documents and number of citations per journal. However, a minimal gap is seen in other objectives, such as authors, journals, and institutions on their contribution towards the publication of gingivectomy topics.

Conclusion: A total of 660 of 1914 articles were included in the analysis after the filtering process, and these articles were cited 5910 times, with an average of 9 citations per article.