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Brazilian Oral Research 2024The objective of this study was to analyze the influence of insertion torque, bone type, and peri-implant bone loss on implant stability quotient (ISQ) of cylindrical...
The objective of this study was to analyze the influence of insertion torque, bone type, and peri-implant bone loss on implant stability quotient (ISQ) of cylindrical external hexagon (EH) and Morse Taper (MT) implants. Forty-four single implants were placed in the edentulous areas of 20 patients who met the inclusion and exclusion criteria. Immediately after implant placement (t1) and after osseointegration (four and six months for mandible and maxilla, respectively) (t2), insertion torque, resonance frequency, and peri-implant bone loss were measured using probing depths and digital periapical radiography. A significant difference was noted in the ISQ values between t1 and t2 in type III bone for EH and MT implants. No significant difference in bone loss values was observed when comparing bone types for EH or MT in all evaluated sites. Based on marginal bone loss assessed using radiography, there was no significant difference between the MT and EH groups. A positive correlation between torque and ISQ t1 value was observed for MT (correlation: 0.439; p = 0.041) and EH (correlation: 0.461; p = 0.031) implants. For EH and MT implants, the greater the insertion torque, the greater was the ISQ value (moderately positive correlation). A weak negative correlation was found between bone type and ISQ t1 for MT implants. Contrarily, no correlation was observed between bone type and ISQ t1 for EH implants. In all cases, bone loss around the implants was clinically normal.
Topics: Humans; Torque; Male; Female; Alveolar Bone Loss; Osseointegration; Dental Implantation, Endosseous; Middle Aged; Reference Values; Time Factors; Treatment Outcome; Statistics, Nonparametric; Dental Prosthesis Design; Adult; Mandible; Dental Prosthesis Retention; Aged; Resonance Frequency Analysis; Dental Implants; Maxilla; Dental Implants, Single-Tooth; Reproducibility of Results
PubMed: 38922209
DOI: 10.1590/1807-3107bor-2024.vol38.0049 -
Journal of Functional Biomaterials May 2024The progress of digital technologies in dental prosthodontics is fast and increasingly accurate, allowing practitioners to simplify their daily work. These technologies...
The progress of digital technologies in dental prosthodontics is fast and increasingly accurate, allowing practitioners to simplify their daily work. These technologies aim to substitute conventional techniques progressively, but their real efficiency and predictability are still under debate. Many systematic reviews emphasize the lack of clinical RCTs that compare digital and traditional workflow. To address this evidence, we conducted a three-arm designed clinical RCT, which compares fully digital, combined digital, and analogic and fully analog workflows. We aimed to compare the clinical properties of each workflow regarding interproximal (IC) and occlusal contact (OC), marginal fit, impression time (IT), and patient satisfaction through a VAS scale. In total, 72 patients were included in the study. The IC and OC of the digital workflow were better than the others ( < 0.001), which obtained similar results. No difference between implant-abutment fit was observed ( = 0.5966). The IT was shorter in the digital workflow than the others ( < 0.001), which were similar. Patient satisfaction was higher in the digital workflow than in the conventional one. Despite the limitations, this study's results support better accuracy and patient tolerance of digital workflow than of conventional techniques, suggesting it as a viable alternative to the latter when performed by clinicians experienced in digital dentistry.
PubMed: 38921523
DOI: 10.3390/jfb15060149 -
Dentistry Journal Jun 2024The increase in soft tissue (ST) around implants can benefit peri-implant health and aesthetic results. The objective was to compare the gingival and esthetic health... (Review)
Review
BACKGROUND
The increase in soft tissue (ST) around implants can benefit peri-implant health and aesthetic results. The objective was to compare the gingival and esthetic health benefits of immediate implant placement (IIP) with simultaneous or delayed connective tissue graft (CTG) compared to IIP without CTG.
METHODS
A systematic review was carried out by two reviewers in Medline-Pubmed, Scopus, and Cochrane. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) were considered. Randomized Clinical Trials (RCTs) that were published between April 2017 and February 2024 were used. Studies that analyzed the performance of a simultaneous or deferred CTG after the placement of an implant in the aesthetic zone, with or without immediate provisionalization, without previous regeneration, with a follow-up of 6 months, and that were performed in humans were included.
RESULTS
Quantitative analysis was performed using data provided by the RCTs. The five RCTs that were selected analyzed a total "" of 245 subjects who met the inclusion criteria and focused on the subject of the study. In the quantitative analysis, four RCTs were included. The studies evaluated buccal gingiva levels when placing the IIP with and without CTG, obtaining a mean buccal gingiva level difference of 0.09 mm (95% CI: -0.54 to 0.72, = 0.05), statistically not significant, but with a favorable trend.
CONCLUSIONS
The use of CTG associated with the II can maintain the gum level but not increase the volume. CTG is favorable for achieving successful esthetic results when immediate placement of an implant with a provisional prosthesis is planned.
PubMed: 38920885
DOI: 10.3390/dj12060183 -
Acta Odontologica Latinoamericana : AOL Apr 2024Glass ceramics are widely used to manufacture esthetic veneers, inlays, onlays, and crowns. Although the clinical survival rates ofglass-ceramic restorations...
UNLABELLED
Glass ceramics are widely used to manufacture esthetic veneers, inlays, onlays, and crowns. Although the clinical survival rates ofglass-ceramic restorations arefavorable,fractures or chips are common. Certain cases can be repaired with direct composite.
AIM
The aim of this study was to investigate the interaction effect of different designs and surface treatments on the load-to-failure of lithium disilicate glass-ceramic repaired with nanofilled composite.
MATERIALS AND METHOD
Lithium-disilicate glass-ceramic slabs (IPS e.max Press, Ivoclar Vivadent) with three different designs of the top surface (flat, single plateau, or doubleplateau) (n=U) received 'no treatment', '5% HF etching', or "AI2O3 sandblasting". HF-etched and sandblasted slabs also received silane and universal one-step adhesive application. All slabs were incrementally repaired with nanofilled composite (Filtek Z350, 3M ESPE) up to6 mm above the highest ceramic top plateau. Specimens were stored in artificial saliva at 37 °C for 21 days and then subjected to 1,000 thermocycles between 5 and 55 °C. The interface composite-ceramic of each specimen was tensile tested until failure in a universal testing machine and the mode of failure was determined under a stereomicroscope. The ceramic surface morphology of one representative tested specimen from each subgroup (design/surface treatment) was observed through scanning electron microscopy (SEM).
RESULTS
Regardless of ceramic design, the absence of surface treatment resulted in significantly lower load-to-failure values. No significant differences in load-to-failure values were observed between HF-etched and sandblasted specimens for the flat design; however, HF etching resulted in significantly higher load-to-failure values than sandblasting for both single plateau and double plateau designs. The majority (60%) of HF-etched specimens with single plateau or double plateau presented mixed failures. SEM photomicrographs showed that HF-etched specimens had smoother surfaces than sandblasted specimens.
CONCLUSION
The surface treatment of a defective lithium disilicate glass-ceramic restoration has more influence than its macroscopic design on the retention of the composite repair. HF etching seems to provide higher bond strength to the composite repair.
Topics: Ceramics; Surface Properties; Dental Porcelain; Materials Testing; Dental Restoration Failure; Composite Resins; Dental Stress Analysis; Dental Prosthesis Design
PubMed: 38920130
DOI: 10.54589/aol.37/1/88 -
Annali Italiani Di Chirurgia 2024Chronic periodontitis leads to gingival swelling, hyperplasia, and tooth mobility, which affects orthodontic treatment. The aim of this study was to investigate the...
AIM
Chronic periodontitis leads to gingival swelling, hyperplasia, and tooth mobility, which affects orthodontic treatment. The aim of this study was to investigate the application of cefaclor in orthodontics through micro-implant anchorage in patients with periodontitis.
METHODS
A retrospective study was conducted on patients with periodontitis who received micro-implant anchorage treatment in the department of orthodontics at the First People's Hospital of Yongkang City from July 2019 to January 2022. According to different treatment regimens, these patients were divided into the test group (patients receiving cefaclor and micro-implant anchorage treatment) and the control group (patients receiving micro-implant anchorage treatment only). The plaque index (PLI), gingival index (GI), sulcus bleeding index (SBI), and serum inflammatory factor levels were compared between the two groups after treatment.
RESULTS
One hundred and five patients were included in the study, (44 males and 61 females, median age 21 [15-25] years), 51 in the cefaclor group and 54 in the no cefaclor group. After treatment, the PLI, GI, and SBI scores in the two groups were higher than those before treatment, and the levels of serum inflammatory markers significantly increased (p < 0.05). After treatment, the PLI, GI, and SBI scores in the test group were significantly lower than those in the control group (p < 0.001). The levels of serum interleukin-1β, interleukin-6, interleukin-8, and tumor necrosis factor-α were significantly lower in the test group, and the interleukin-2 level was higher in the test group (p < 0.001). There was no significant difference in the incidence of complications between the two groups (p > 0.05).
CONCLUSIONS
Cefaclor and micro-implant anchorage have a good clinical effect on orthodontics in patients with periodontitis, improving periodontal health and reducing inflammatory response.
Topics: Humans; Female; Male; Retrospective Studies; Adult; Cefaclor; Young Adult; Adolescent; Anti-Bacterial Agents; Orthodontic Anchorage Procedures; Periodontal Index; Chronic Periodontitis; Dental Implants
PubMed: 38918968
DOI: 10.62713/aic.3281 -
Journal of Medical Case Reports Jun 2024Free gingival graft is commonly used to augment the keratinized mucosa and vestibular depth around dental implants. The proper suturing technique is fundamental to...
BACKGROUND
Free gingival graft is commonly used to augment the keratinized mucosa and vestibular depth around dental implants. The proper suturing technique is fundamental to achieve a successful result following free gingival graft. However, there are limited studies that focus on the details of the suturing methods to optimize graft adaptation. The purpose of this technical note is to describe a new suturing technique for optimal approximation and stabilization of free gingival graft around dental implants.
CASE PRESENTATION
Here, we present a 53-year-old Persian female with peri-implantitis and lack of keratinized mucosa around mandibular implants who was a candidate for free gingival graft. A new suturing technique, double vertical interrupted suture, was conducted in the interimplant areas. In addition, the suspensory cross-mattress sutures were added to ensure the adaptation of the graft over the implants. The proposed suturing technique is useful for soft tissue augmentation around multiple implants with concave or uneven recipient bed.
CONCLUSION
The present article describes a novel suturing technique for good adaptation and fixation of free gingival graft around dental implants.
Topics: Humans; Female; Middle Aged; Gingiva; Suture Techniques; Dental Implants; Peri-Implantitis; Mandible
PubMed: 38918876
DOI: 10.1186/s13256-024-04611-2 -
BMC Oral Health Jun 2024One of the most important factors that has influence on dental implants success rate is marginal bone loss. The purpose of this study is to investigate the effect of the... (Randomized Controlled Trial)
Randomized Controlled Trial
OBJECTIVES
One of the most important factors that has influence on dental implants success rate is marginal bone loss. The purpose of this study is to investigate the effect of the implant's vertical position and the soft tissue's thickness on the rate of marginal bone loss of the dental implant.
MATERIALS AND METHODS
In this single-blind randomized clinical trial study, 56 implants placed in the posterior region of mandible of 33 patients (19 women, 14 men) were divided into two groups. The group of crestal (28 implants) and subcrestal (28 implants) implants, each group was divided into two sub-groups with soft tissue thickness of 2 mm and less than 2 mm (14 implants) and more than 2 mm (14 implants). The amount of marginal bone loss was measured by Scanora 5.2 program with radiographs Digital parallelism based on the effect of the vertical position of the implant, soft tissue thickness, three months after placement, and three months after loading implants (six months after implant placement).
RESULTS
The results showed that marginal bone loss in subcrestal implants is significantly more than crestal implants (p-value = 0.001), and also marginal bone loss in the soft tissue thickness group of 2 mm and less is significantly more than the group of soft tissue thickness more than 2 mm (p-value < 0.001). The amount of marginal bone loss three months after implant loading was significantly higher than three months after implant placement (p-value < 0.001).
CONCLUSION
The implant's vertical position and the soft tissue's thickness around the implant are effective factors in the amount of marginal bone loss. Marginal bone loss is more in subcrestal implants and in cases with less soft tissue thickness. The time factor significantly affects the amount of marginal bone loss.
TRIAL REGISTRATION
this clinical trial was registered at Iranian Registry of Clinical Trials, registration number IRCT20120215009014N415, registration date 20,220,110, (https//en.irct.ir/trial/60,991).
Topics: Humans; Alveolar Bone Loss; Female; Male; Single-Blind Method; Dental Implants; Adult; Mandible; Middle Aged; Dental Implantation, Endosseous
PubMed: 38915016
DOI: 10.1186/s12903-024-04480-7 -
BMJ Case Reports Jun 2024Conventional operative dental procedures are being revisited with an approach that seeks to preserve the original tissue as much as possible. Implant dentistry has also...
Conventional operative dental procedures are being revisited with an approach that seeks to preserve the original tissue as much as possible. Implant dentistry has also seen the advent of various techniques which make minimal alteration to natural tissue. The flapless technique involves implant placement either through a freshly extracted socket or through a tansmucosal punch hole, without elevating mucoperiosteal flap. This paper presents a report on three cases of patient centric, conventional dental implant-based full-mouth rehabilitation, which was successfully carried out using the flapless technique, under varied clinical situations. Each case showed a favourable outcome in terms of restoration of the form and function of the patient's dentition.
Topics: Humans; Female; Male; Minimally Invasive Surgical Procedures; Mouth Rehabilitation; Dental Implantation, Endosseous; Middle Aged; Dental Implants; Adult
PubMed: 38914524
DOI: 10.1136/bcr-2024-259781 -
Photodiagnosis and Photodynamic Therapy Jun 2024This study aimed to assess the effectiveness of photobiomodulation therapy (PBM) in enhancing bone integration with dental implants. (Review)
Review
AIM
This study aimed to assess the effectiveness of photobiomodulation therapy (PBM) in enhancing bone integration with dental implants.
METHOD
PubMed, ScienceDirect, the Cochrane Library, Scopus, and Google Scholar were searched. Studies assessing PBM effectiveness with defined intervention/control groups were included, while those lacking specified laser types, involving severe maxillofacial defects or surgery, and not reporting outcomes related to dental implant osseointegration post-PBM therapy were excluded. The studies' risk of bias was assessed using Robvis for randomized controlled trials (RCTs) and ROBINS-I for non-RCTs. The meta-analysis was conducted utilizing a random-effects model at a significance level of 0.01.
RESULTS
The study reviewed 26 papers involving 571 patients undergoing dental implant procedures with PBM/Low-Level Laser Therapy (LLLT) or placebo/control. Implant stability quotients (ISQ) analysis showed a non-significant difference (p=0.06, mean difference: 1.02, 95% CI: 0.28 to 1.75, I=28%), while the Periotest method indicated significant improvement in stability (p<0.01, mean difference: -0.51, 95% CI: -0.78 to -0.24, I=71%). PBM resulted in a significant bone density increase (p<0.01, mean difference: 26, 95% CI: 6.93 to 45.06, I=91%), but marginal bone loss showed no significant difference (p=0.11, mean difference: 0.00, 95% CI: -0.06 to 0.05, I=45%). Implant survival rate did not significantly differ (p=0.73, mean difference: 1.56, 95% CI: 0.38 to 6.46, I=0%). Most studies raised concerns regarding randomization.
CONCLUSION
PBM could improve implant stability, as assessed with Periotest, and increase bone density, enhancing osseointegration. However, implant stability assessed with ISQ, marginal bone loss, and implant survival rate were comparable between the study groups.
PubMed: 38914185
DOI: 10.1016/j.pdpdt.2024.104256 -
F1000Research 2023Pediatric dental treatment is challenging in patients with early childhood caries. For clinician its difficult to manage child and provide good work at the same time.... (Comparative Study)
Comparative Study
BACKGROUND
Pediatric dental treatment is challenging in patients with early childhood caries. For clinician its difficult to manage child and provide good work at the same time. Its necessity to have the best equipments as well as materials. Nowadays, aesthetics play an important role in managing decayed teeth. Zirconia crown is better option but requires excessive preparation. As Bioflx is newly developed crown and has combined stainless steel and zirconia properties.
AIM
To assess the clinical performance and child and parental satisfaction of Bioflex crowns compared to zirconia and stainless steel crowns.
METHODS
In this comparative study of Bioflx crowns with zirconia and stainless steel crowns, children aged three to seven years old will be selected, and 72 primary teeth requiring crowns will be randomly distributed into three groups, n = 24: Preformed stainless steel crown, control; Preformed Bioflex crown; Preformed zirconia crown. Crowns will be evaluated for recurrent caries, plaque accumulation, restoration failure, gingival status opposing tooth wear, and clinicians and parental satisfaction at zero, three, six, and 12 months.
RESULTS
Bioflx crown will have better clinical as well as parental satisfaction among zirconia and stainless steel crowns.
CONCLUSIONS
The Bioflx crown can be used as an alternative economical esthetic full-coronal restoration for primary teeth.
TRIAL REGISTRATION
CTRI registration number: CTRI/2023/05/052256; Date of registration: May 03, 2023.
PROTOCOL VERSION
Two; Date: April 22, 2023.
Topics: Zirconium; Stainless Steel; Crowns; Pediatric Dentistry; Humans; Male; Female; Child, Preschool; Child; Patient Satisfaction
PubMed: 38911945
DOI: 10.12688/f1000research.133464.2