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British Dental Journal Jun 2024
Topics: Humans; Prosthesis-Related Infections; Male; Female
PubMed: 38942859
DOI: 10.1038/s41415-024-7571-9 -
British Dental Journal Jun 2024
Topics: Humans; Tooth Loss; Dentures
PubMed: 38942848
DOI: 10.1038/s41415-024-7587-1 -
The Journal of Prosthetic Dentistry Jun 2024Maxillary defects pose challenges for prosthodontists, especially when patients have no remaining teeth. This clinical report describes rehabilitation with a complete...
Maxillary defects pose challenges for prosthodontists, especially when patients have no remaining teeth. This clinical report describes rehabilitation with a complete denture obturator fabricated in 2 visits for an edentulous patient after a maxillectomy. The obturator base and artificial teeth were digitally designed and merged into a 1-piece prosthesis. Following a virtual reduction, the integrated prosthesis and a gingival veneer were calculated and then printed and bonded together to complete the fabrication. Balanced occlusion was achieved with the assistance of a digital occlusion analyzer at the insertion visit. This approach avoided base-tooth assembly deviations and provided a prosthesis with good patient-reported outcomes at the 6-month follow-up.
PubMed: 38942715
DOI: 10.1016/j.prosdent.2024.05.021 -
The International Journal of Oral &... Jun 2024There are several factors that may influence implant site preparation with implant design being a paramount factor; however, few studies investigate its impact. The...
PURPOSE
There are several factors that may influence implant site preparation with implant design being a paramount factor; however, few studies investigate its impact. The purpose of the study was to explore the comparative efficacy of using two different drilling protocols using burs with different design for preparing implant sites, by evaluating radiographic and clinical outcomes.
MATERIALS AND METHODS
The present randomized controlled clinical trial with an allocation ratio of 1:1 was carried on in two private practice offices by two experienced surgeons and researchers. In the control group the surgeons followed the protocol with standard straight burs while in the test group they used step burs. In both groups the patients received the same type of implants and prosthesis. The primary outcome was the marginal bone resorption one year after the prosthetic placement.
RESULTS
In the study were included and treated a total of 60 subjects (86 implants). At the one-year follow-up were screened 54 subjects (74 implants), and 50 at the 2-year follow-up (69 implants). This study showed no evidence of a difference in bone resorption, which increased significantly over time, between the two groups.
CONCLUSIONS
Both clinical parameters and patientcentered outcomes revealed no difference between the two protocols of implant site preparation with two different drill shape.
PubMed: 38941163
DOI: 10.11607/jomi.11037 -
Clinical Oral Investigations Jun 2024Evaluate the efficacy of denture cleaners on the adhesion of Candida albicans and their effects on the surface, optical, and mechanical properties of resins for...
OBJECTIVES
Evaluate the efficacy of denture cleaners on the adhesion of Candida albicans and their effects on the surface, optical, and mechanical properties of resins for conventional, milled, and 3D-printed denture bases.
MATERIALS AND METHODS
A total of 240 resin samples were made, 120 for testing Candida albicans adhesion, optical stabilities (ΔE), roughness (Ra), hydrophilicity (°), surface free energy (Owens-Wendt) and 120 samples for testing Candida albicans adhesion, surface microhardness (Knoop), flexural strength and modulus of elasticity in a three-point test, in which they were divided into 3 groups of denture resin (n = 40) and subdivided into 5 cleaners of dentures (n = 8). Data were evaluated by two-way ANOVA and Tukey's test for multiple comparisons (α = 0.05).
RESULTS
Denture cleaners with an alkaline solution and dilute acid composition were those that showed the greatest effectiveness in reducing Candida albicans (P < 0.001), however 1% NaOCl significantly affected the properties of the resins (P < 0.05). Denture 3D-printed showed that the surface microhardness was significantly lower for all cleansers (P < 0.05).
CONCLUSIONS
Listerine demonstrated superior efficacy in reducing Candida albicans with minimal effect on denture properties, whereas 1% NaOCl had a significant negative impact on the properties. The mechanical properties were significantly lower in 3D-printed resin than in other resins for all denture cleansers.
CLINICAL RELEVANCE
Denture base materials are being sold to adapt to the CAD/CAM system, increasing the number of users of dentures manufactured with this system. Despite this, there is little investigation into denture cleaners regarding the adhesion capacity of microorganisms and the optical, surface and mechanical properties of dentures, thus requiring further investigation.
Topics: Candida albicans; Denture Bases; Denture Cleansers; Surface Properties; Printing, Three-Dimensional; Materials Testing; Computer-Aided Design; Hardness; Flexural Strength; Dental Materials
PubMed: 38940942
DOI: 10.1007/s00784-024-05801-4 -
Clinical Oral Investigations Jun 2024The purpose of this prospective cohort study is to evaluate the effect of peri-implant phenotype (PPh) on the severity of peri-implant diseases and the results of...
OBJECTIVES
The purpose of this prospective cohort study is to evaluate the effect of peri-implant phenotype (PPh) on the severity of peri-implant diseases and the results of non-surgical mechanical treatment (NSMT), along with calprotectin (CLP) and MMP-8(matrix metalloproteinase-8) levels.
MATERIALS AND METHODS
77 implants from 39 patients were included. The implants were categorized Group-1(peri-implant mucositis), Group-2(peri-implantitis).Baseline (0. Month-PrT) clinical parameters (PD, GI, PI, BOP, CAL) and radiographic bone loss were documented, and peri-implant crevicular fluid (PICF) samples were collected. Various intruments and methodologies were employed to assess PPh components (mucosa thickness, supracrestal tissue height, keratinized mucosa) and peri-implant attached mucosa (AM). NSMT was applied to diseased implant sites. All clinical parameters were reassessed again by taking PICF samples at the 6th month-after treatment (PT). In PICF samples obtained from both groups, MMP-8 and CLP levels were evaluated using the ELISA test.
RESULTS
PrT-PD,PrT-GI,PrT-CAL and PrT-BOP percentage values in Group-2 were significantly higher than Group-1.PrT-PD,PrTPI scores are significantly higher in thin biotype implants. All components of the PPh and AM were significantly lower in thin biotype. Intra-group time-dependent changes of MMP-8 and CLP were significant in both groups (p < 0.05). When the relationship between thin and thick biotype and biochemical parameters was evaluated, the change in PrT-PT didn't show a significant difference (p > 0.05).
CONCLUSIONS
PPh plays a role in influencing the severity of peri-implant diseases. However, the impact of phenotype on NSMT outcomes was similar in both groups.
CLINICAL RELEVANCE
The PPh should be considered when planning implant surgery.
Topics: Humans; Matrix Metalloproteinase 8; Female; Prospective Studies; Peri-Implantitis; Male; Middle Aged; Phenotype; Gingival Crevicular Fluid; Leukocyte L1 Antigen Complex; Dental Implants; Enzyme-Linked Immunosorbent Assay; Biomarkers; Stomatitis; Periodontal Index; Adult; Aged
PubMed: 38940878
DOI: 10.1007/s00784-024-05798-w -
BMC Oral Health Jun 2024The desirable properties of silver diamine fluoride (SDF) make it an effective agent for managing dental caries and tooth hypersensitivity. There are several clinical...
BACKGROUND
The desirable properties of silver diamine fluoride (SDF) make it an effective agent for managing dental caries and tooth hypersensitivity. There are several clinical instances that SDF application might precede the placement of direct tooth-colored restorations. On the other hand, SDF stains demineralized/carious dental tissues black, which might affect the esthetic outcomes of such restorations. Color is a key parameter of esthetics in dentistry. Therefore, this study aims to systematically review dental literature on color/color change of tooth-colored restorations placed following the application of SDF on dentine.
METHODS
Comprehensive search of PubMed, Embase, Scopus and ISI Web of Science databases (until August 2023) as well as reference lists of retrieved studies was performed. In vitro studies reported color or color change of tooth-colored restorative materials applied on SDF-treated dentine were included. Methodological quality assessment was performed using RoBDEMAT tool. Pooled weighted mean difference (WMD) and 95% confidence interval (95% CI) was calculated.
RESULTS
Eleven studies/reports with a total of 394 tooth-colored restorations placed following a) no SDF (control) or b) SDF with/without potassium iodide (KI)/glutathione dentine pre-treatments were included. Color change was quantified using ∆E formulas in most reports. The pooled findings for the comparison of resin-based composite (RBC) restorations with and without prior 38% SDF + KI application revealed no statistically significant differences in ∆E values at short- and long-term evaluations (~ 14 days: WMD: -0.56, 95% CI: -2.09 to 0.96; I: 89.6%, and ~ 60 days: WMD: 0.11; 95% CI: -1.51 to 1.72; I: 76.9%). No studies provided sufficient information for all the items in the risk of bias tool (moderate to low quality).
CONCLUSIONS
The limited evidence suggested comparable color changes of RBC restorations with and without 38% SDF + KI pre-treatment up to 60 days. The included studies lacked uniformity in methodology and reported outcomes. Further studies are imperative to draw more definite conclusions.
PROTOCOL REGISTRATION
The protocol of this systematic review was registered in PROSPERO database under number CRD42023485083.
Topics: Silver Compounds; Humans; Quaternary Ammonium Compounds; Fluorides, Topical; Dentin; Color; Dental Restoration, Permanent
PubMed: 38937760
DOI: 10.1186/s12903-024-04487-0 -
Clinical Oral Investigations Jun 2024The aim of this study was to evaluate whether thermal implant removal of osseointegrated implants is possible using a diode laser with an specific temperature-time...
OBJECTIVES
The aim of this study was to evaluate whether thermal implant removal of osseointegrated implants is possible using a diode laser with an specific temperature-time interval.
MATERIALS AND METHODS
First, tooth extraction of the first three premolars was performed in the maxilla and mandible on both sides of 10 pig. After 3 months, implants were inserted into the upper and lower jaws of 10 pigs. After 3 more months, osseointegrated implants were heated with a laser device to a temperature of 50 °C for 1 min. After 14 days, the implant stability quotient (ISQ), torque-out values, and bone-to-implant contact (BIC) ratio were assessed using resonance frequency analysis.
RESULTS
ISQ values showed no significant differences within each group or between the control and test groups. Furthermore, torque-out and BIC value measurements presented no significant differences between the groups.
CONCLUSIONS
At 50°C, changes in the BIC values were noticeably smaller; however, these differences were not significant. Future studies should evaluate the same procedures at either a higher temperature or longer intervals.
CLINICAL RELEVANCE
With only 50 °C for 1 min, a dental implant will not de-integrate predictably.
Topics: Animals; Swine; Dental Implants; Device Removal; Proof of Concept Study; Hot Temperature; Resonance Frequency Analysis; Dental Implantation, Endosseous; Torque; Osseointegration
PubMed: 38937381
DOI: 10.1007/s00784-024-05619-0 -
International Journal of Implant... Jun 2024This propensity score matching, multicenter, cross-sectional study was performed to examine the effects of various prosthetic methods for dental clinic outpatients with...
Effects of various prosthetic methods for patients with Kennedy Class I partial edentulism on oral hypofunction, subjective symptoms, and oral health-related quality of life.
PURPOSE
This propensity score matching, multicenter, cross-sectional study was performed to examine the effects of various prosthetic methods for dental clinic outpatients with Kennedy Class I partial edentulism (KCIPE) on oral hypofunction, subjective frailty symptoms, and oral health-related quality of life (QOL).
METHODS
Patients (n = 348) were classified into the following three groups for analysis: NT, patients with natural dentition providing intermaxillary contact in four occlusal supporting zones; RPD, patients with KCIPE who received removable partial dentures; and ISFP, patients with KCIPE who received implant-supported fixed prostheses. Participants' basic characteristics were recorded, and oral function tests were conducted. Subjective symptoms of physical and oral frailty were investigated via questionnaire. Oral health-related QOL was assessed using the Japanese short version of the Oral Health Impact Profile (OHIP-JP16). Propensity score matching was performed to adjust for patient background factors that could influence oral hypofunction in each group.
RESULTS
Compared with the ISFP group, the RPD group had significantly higher rates of poor oral hygiene, reduced occlusal force, decreased masticatory function, and declines in swallowing function and oral hypofunction; the odds ratio for oral hypofunction was 4.67. Compared with the ISFP group, the RPD group had significantly greater subjective symptoms of physical frailty and oral frailty, as well as higher OHIP scores.
CONCLUSIONS
Prosthetic treatment of KCIPE affected oral hypofunction, subjective frailty symptoms, and oral health-related QOL in dental clinic outpatients.
Topics: Humans; Quality of Life; Cross-Sectional Studies; Male; Female; Middle Aged; Oral Health; Jaw, Edentulous, Partially; Denture, Partial, Removable; Aged; Surveys and Questionnaires; Propensity Score; Dental Prosthesis, Implant-Supported; Denture, Partial, Fixed; Adult
PubMed: 38935335
DOI: 10.1186/s40729-024-00555-w -
Indian Journal of Dental Research :... Jan 2024This case report outlines a novel prosthodontic approach for managing a broken screw inside an implant screw channel, emphasising the importance of innovative solutions...
RATIONALE
This case report outlines a novel prosthodontic approach for managing a broken screw inside an implant screw channel, emphasising the importance of innovative solutions in implant dentistry.
PATIENT CONCERNS
A 57-year-old male patient sought restoration for implant-supported crowns (#46 and #47). A broken screw inside the implant screw channel posed a significant concern for both the patient and the dental team.
TREATMENT
Utilising an impression pickup technique of the inner surface of the implant body, a custom titanium abutment was fabricated in the laboratory and restoration was successfully replaced. A follow-up of 6 months was performed, ensuring optimal function and patient satisfaction.
OUTCOME
The custom titanium abutment with a zirconia crown was placed, leading to a successful restoration. The patient reported no discomfort, demonstrating improved function and aesthetics.
TAKEAWAY LESSON
This case highlights the effectiveness of tailored prosthodontic interventions in addressing complex implant-related complications.
Topics: Humans; Male; Middle Aged; Crowns; Dental Prosthesis, Implant-Supported; Dental Implants; Dental Implant-Abutment Design; Dental Restoration Failure; Zirconium; Titanium; Dental Abutments
PubMed: 38934762
DOI: 10.4103/ijdr.ijdr_953_23