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Journal of Oral Biology and... 2022This systematic review evaluates the variation in molar bite force (MBF) with the type and severity of dental malocclusion in young adults with permanent dentition. (Review)
Review
OBJECTIVE
This systematic review evaluates the variation in molar bite force (MBF) with the type and severity of dental malocclusion in young adults with permanent dentition.
METHODS
We searched seven electronic databases until December 31, 2021, and identified 1898 articles, of which 22 full-texts were reviewed. Eight clinical studies with subjects having permanent dentition with various dental malocclusions and quantifying maximal bite force were included for the review. Newcastle Ottawa scale was used to assess the risk of bias and GRADE to study the certainty of evidence. Articles were evaluated for the primary outcome (variation of MBF in different malocclusion groups) and confounding factors affecting MBF.
RESULTS
All studies measured MBF in individuals with normal and malocclusion, with 2329 subjects having permanent dentition. A positive correlation of Class I normal occlusion with the bite force was seen compared to Class II and III malocclusion. Unilateral crossbite patients had lesser bite force. Six studies with 1023 males and 1175 females showed MBF more in males than females. In 3 studies (332 subjects), no significant difference for MBF between the right and left sides of the jaws was measured.
CONCLUSION
MBF decreases significantly with vertical and transverse craniofacial and dental discrepancy. Normal sagittal occlusion has more molar bite force than patients with different malocclusions. Also, MBF is more in males than females, and it increases with age.
REGISTRATION
PROSPERO CRD42021249328.
PubMed: 36092457
DOI: 10.1016/j.jobcr.2022.08.009 -
Journal of Oral Rehabilitation Apr 2018No consensus has been reached regarding the best occlusal scheme for making complete dentures. Thus, the purpose of this systematic review was to compare bilateral... (Comparative Study)
Comparative Study Review
No consensus has been reached regarding the best occlusal scheme for making complete dentures. Thus, the purpose of this systematic review was to compare bilateral balanced occlusion (BBO) with other occlusal schemes (canine guidance, lingualised occlusion and zero degree) in complete dentures. The schemes were compared in terms of quality of life/satisfaction and masticatory performance. Two independent reviewers performed a comprehensive search of studies published in or before October 2017 using the PubMed/MEDLINE, Scopus and Cochrane Library databases. The search was performed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. The focused question was: "In conventional complete denture, is BBO better than lingualised occlusion, canine guidance and zero degree in terms of quality of life, patient satisfaction and masticatory performance/muscle activity?" Seventeen studies were selected for analysis. In total, there were 492 patients with a mean age of 64.78 years and a mean follow-up duration of 2.96 months (range: 1-6 months). All studies compared BBO with the other occlusal schemes. Eleven studies evaluated the influence of the occlusal scheme designs on quality of life and satisfaction, and 8 studies evaluated masticatory performance and muscle activity between BBO and the other occlusion schemes. The present systematic review indicated that BBO does not confer better quality of life/satisfaction or masticatory performance and muscle activity. Thus, lingualised occlusion can be considered a predictable occlusal scheme for complete dentures in terms of quality of life/satisfaction and masticatory performance, while canine guidance can be used to reduce muscular activity.
Topics: Dental Occlusion, Balanced; Denture Design; Denture, Complete; Humans; Mastication; Mouth, Edentulous; Patient Satisfaction; Quality of Life
PubMed: 29314199
DOI: 10.1111/joor.12607 -
Journal of Oral & Maxillofacial Research 2022The purpose of this systematic review and meta-analysis is to examine the success rate of osseointegrated dental implants placed secondarily in fibula free flaps using... (Review)
Review
OBJECTIVES
The purpose of this systematic review and meta-analysis is to examine the success rate of osseointegrated dental implants placed secondarily in fibula free flaps using the Albrektsson and colleagues criteria.
MATERIAL AND METHODS
A computerized database search was performed using PubMed, Embase, Web of Science and Cochrane CENTRAL. Specific ascertainment criteria were applied for the inclusion of the eligible studies. This systematic review adhered to the Preferred Reporting Items for Systematic Reviews and Meta-analysis PRISMA checklist. Risk of bias was assessed for all the included studies.
RESULTS
The meta-analysis was carried using ten studies that met the inclusion criteria. The present review pooled data obtained from 242 patients (167 males and 75 females), with the age range of 13 to 79 years. A total of 848 dental implants were placed in the free fibula flaps. All dental implants were placed in a delayed fashion, ranging from 14 to 192 months. The estimated proportion of successful implants placed in fibula flaps used to reconstruct the maxillomandibular complex was 0.94 or 94% (95% CI [confidence interval] = 0.91 to 0.96]) with an insignificant heterogeneity of 37%, P = 0.12. Using a random effect model the annual implant failure rate was 0.02 with a 95% CI = 0.01 to 0.03.
CONCLUSIONS
The results of this systematic review and meta-analysis strongly indicate that using objective criteria, delayed implant placement in free fibula flaps is highly successful.
PubMed: 35574211
DOI: 10.5037/jomr.2022.13103 -
JPMA. the Journal of the Pakistan... Nov 2021To review different modes of application of hydroxyapatite for treatment of dentin hypersensitivity via dentinal tubule occlusion.
OBJECTIVE
To review different modes of application of hydroxyapatite for treatment of dentin hypersensitivity via dentinal tubule occlusion.
METHODS
Literature search for the systematic review was done using key words 'hydroxyapatite and dentin hypersensitivity', 'hydroxyapatite and dentinal tubule occlusion', 'hydroxyapatite and dentin permeability', and 'dentinal tubule occlusion' on Pubmed, Science Direct and Web of Science databases for articles published over 10 years, from 2009 to 2018.
RESULTS
Of the 132 research articles initially identified, 97(73.5%) related to the 10-year study period. After detailed screening, 16(16.5%) studies were included. The results of in vitro studies showed that application of hydroxyapatite caused dentinal tubule occlusion leading to reduction in dentin permeability and reduction in dentin hypersensitivity.
CONCLUSIONS
Hydroxyapatite has the potential to reduce dentin hypersensitivity via dentinal tubule occlusion within 2-8 weeks.
Topics: Dentin; Dentin Sensitivity; Durapatite; Humans; Microscopy, Electron, Scanning
PubMed: 34783744
DOI: 10.47391/JPMA.01175 -
Gerodontology Jun 2023The present systematic review and meta-analysis aimed to summarise the current information on the masticatory function of stroke patients. (Meta-Analysis)
Meta-Analysis Review
PURPOSE
The present systematic review and meta-analysis aimed to summarise the current information on the masticatory function of stroke patients.
METHODS
Four electronic databases (Medline, Embase, CINAHL and Web of Science) were searched for relevant observational studies and clinical trials (up to Jun 2021) on the masticatory function of stroke patients. Two reviewers independently performed study selection and quality assessments (using JBI Critical Appraisal Checklist). Meta-analysis was conducted for the comparison of bite force and masticatory performance using standardised mean difference (SMD). Of the 3837 records identified, nine studies, corresponding to 11 papers and 302 participants, were included in the analysis.
RESULTS
The maximum bite force of stroke patients was significantly lower than that of the healthy individuals (SMD -0.52, 95% CI: -0.95 to -0.08, P = .02). There was no significant difference between the ipsi-lesional and the contra-lesional sides of the same stroke patient (SMD 0.13, 95% CI: -0.14 to 0.39, P = .34). Stroke patients had lower masticatory performance than healthy people (SMD -0.97, 95% CI: 0.57 to 1.37, P < .00001), and the contra-lesional side was worse than the ipsi-lesional side. Electromyographic analysis indicated that muscle activation of stroke patients was poorer than the healthy individuals, and stroke patients seem to exhibit dysfunction in the recruiting and firing of motor units.
CONCLUSIONS
Stroke patients have lower maximum bite force and masticatory performance than healthy people, with masticatory performance being the most affected.
Topics: Humans; Stroke; Stroke Rehabilitation; Bite Force; Masticatory Muscles; Mastication
PubMed: 36004768
DOI: 10.1111/ger.12653 -
Journal of Oral Rehabilitation Jul 2016The aim was to assess the quality and to summarise the findings of the Systematic Reviews (SRs) and Meta-Analyses (MAs) on the dental and skeletal effects of maxillary... (Meta-Analysis)
Meta-Analysis Review
The aim was to assess the quality and to summarise the findings of the Systematic Reviews (SRs) and Meta-Analyses (MAs) on the dental and skeletal effects of maxillary expansion. Electronic and manual searches have been independently conducted by two investigators, up to February 2015. SRs and MAs on the dentoalveolar and skeletal effects of fixed expanders were included. The methodological quality was assessed using the AMSTAR (A Measurement Tool to Assess Systematic Reviews). The design of the primary studies included in each SR/MA was assessed with the LRD (Level of Research Design scoring). The evidence for each outcome was rated applying a pre-determined scale. Twelve SRs/MAs were included. The AMSTAR scores ranged from 4 to 10. Two SRs/MAs included only RCTs. The current findings from SRs/MAs support with high evidence a significant increase in the short-term of maxillary dentoalveolar transversal dimensions after Rapid Maxillary Expansion (RME). The same effect is reported with moderate evidence after Slow Maxillary Expansion (SME). However, there is moderate evidence of a non-significant difference between the two expansion modalities concerning the short-term dentoalveolar effects. With both RME and SME, significant increase of skeletal transversal dimension in the short-term is reported, and the skeletal expansion is always smaller than the dentoalveolar. Even though dental relapse to some extent is present, long-term results of the dentoalveolar effects show an increase of the transversal dimension, supported by moderate evidence for RME and low evidence for SME. Skeletal long-term effects are reported only with RME, supported by very low evidence.
Topics: Evidence-Based Dentistry; Humans; Mandible; Maxilla; Maxillofacial Development; Palatal Expansion Technique; Treatment Outcome
PubMed: 27004835
DOI: 10.1111/joor.12393 -
Journal of Medicine and Life Apr 2023This systematic review aimed to identify the main tools used to analyze the relationship between the postural and stomatognathic systems. The study followed the PRISMA... (Review)
Review
This systematic review aimed to identify the main tools used to analyze the relationship between the postural and stomatognathic systems. The study followed the PRISMA guidelines, and data were collected from Science Direct and PubMed databases to identify articles published until December 2022. After applying inclusion and exclusion criteria, 26 articles were selected from the initial 903 articles. The selected articles were full-text studies in English or Romanian, examining the relationship between dental occlusion and posture, measuring postural parameters using various tools, implementing occlusal changes, evaluating patients with permanent dentition, or analyzing the connection between occlusion and posture in a unidirectional manner. The findings indicate that orthognathic surgery and orthodontic mouthguards can significantly enhance postural balance and athletic performance. In addition, 63% of the studies concluded that varying modifications and occlusal conditions impact posture. Notable differences exist concerning posture and Angle dental occlusion classes, and different occlusal devices used to simulate malocclusion can affect patients' postural systems in response to external stimuli. The stabilometry platform is the predominant method for measuring postural parameters; however, other researchers have employed raster stereography, photogrammetry, mobile phone apps, and the Fukuda-Unterberger test. Consequently, interventions targeting the stomatognathic system should consider potential variations in the postural system.
Topics: Humans; Stomatognathic System; Athletic Performance; Malocclusion; Postural Balance; Posture
PubMed: 37305821
DOI: 10.25122/jml-2022-0327 -
Clinical Oral Implants Research Sep 2023This review evaluated the effects of rehabilitation with implant-supported prostheses on the oral function of completely edentulous adults. (Meta-Analysis)
Meta-Analysis
OBJECTIVES
This review evaluated the effects of rehabilitation with implant-supported prostheses on the oral function of completely edentulous adults.
MATERIALS AND METHODS
Systematic literature searches were performed to identify records reporting on oral function in completely edentulous adults rehabilitated with implant-supported prostheses. Meta-analyses were performed on various outcomes including bite force, masticatory performance, muscle activity, mandibular movement/chewing pattern, and salivary flow.
RESULTS
5507 records were identified. Thirty studies qualified for data extraction and analysis. The kappa (𝛋) for the search and identification strategy ranged between 0.50 and 1.00. Meta-analysis was performed grouping the studies by outcomes and split by time points of 6-12 months, 12-36 months, and >36 months after implant therapy. The meta-analyses revealed a significant improvement in oral function of completely edentulous adults after rehabilitation with implant-supported prostheses at 6-12 months (Z = -4.895, p < .001; 95% CI: -0.703, -0.301; τ = .609; Q = 114.953, df = 17, p < .001; I = 85.2%), at 12-36 months (Z = -4.886, p < .001; 95% CI: -0.580, -0.248; τ = .908; Q = 280.611, df = 35, p < .001; I = 87.5%) and at more than 36 months (Z = -9.108, p < .001; 95% CI: -1.472, -0.951; τ = .019; Q = 7.918, df = 7, p = .340; I = 11.6%). The included studies demonstrated a low to moderate risk of bias.
CONCLUSIONS
This systematic review concluded that the oral function of completely edentate adults significantly improved with implant-supported/retained prostheses, even when only one jaw received implant therapy. Therefore, implant therapy should be promoted for edentulous adults to alleviate the shortcomings of conventional complete removable dental prostheses.
Topics: Adult; Humans; Dental Prosthesis, Implant-Supported; Dental Implants; Bite Force; Mandible; Mastication; Mouth, Edentulous
PubMed: 37750517
DOI: 10.1111/clr.14068 -
Journal of Clinical Medicine Apr 2020Dental treatments often cause pain and anxiety in patients. Virtual reality (VR) is a novel procedure that can provide distraction during dental procedures or prepare... (Review)
Review
BACKGROUND
Dental treatments often cause pain and anxiety in patients. Virtual reality (VR) is a novel procedure that can provide distraction during dental procedures or prepare patients to receive such type of treatments. This meta-analysis is the first to gather evidence on the effectiveness of VR on the reduction of pain (P) and dental anxiety (DA) in patients undergoing dental treatment, regardless of age.
METHODS
MEDLINE, CENTRAL, PubMed, EMBASE, Wiley Library and Web of Science were searched for scientific articles in November 2019. The keywords used were: "virtual reality", "distraction systems", "dental anxiety" and "pain". Studies where VR was used for children and adults as a measure against anxiety and pain during dental treatments were included. VR was defined as a three-dimensional environment that provides patients with a sense of immersion, transporting them to appealing and interactive settings. Anxiety and pain results were assessed during dental treatments where VR was used, and in standard care situations.
RESULTS
31 studies were identified, of which 14 met the inclusion criteria. Pain levels were evaluated in four studies ( = 4), anxiety levels in three ( = 3) and anxiety and pain together in seven ( = 7). Our meta-analysis was based on ten studies ( = 10). The effect of VR was studied mainly in the pediatric population (for pain SMD = -0.82). In the adult population, only two studies (not significant) were considered.
CONCLUSIONS
The findings of the meta-analysis show that VR is an effective distraction method to reduce pain and anxiety in patients undergoing a variety of dental treatments; however, further research on VR as a tool to prepare patients for dental treatment is required because of the scarcity of studies in this area.
PubMed: 32260538
DOI: 10.3390/jcm9041025 -
Journal of Oral Rehabilitation Dec 2023Patients undergoing mandibular advancement device (MAD) therapy for obstructive sleep apnea (OSA) may experience changes in jaw position and altered occlusion. This... (Review)
Review
Occurrence of Temporomandibular Disorders among patients undergoing treatment for Obstructive Sleep Apnoea Syndrome (OSAS) using Mandibular Advancement Device (MAD): A Systematic Review conducted according to PRISMA guidelines and the Cochrane handbook for systematic reviews of interventions.
BACKGROUND
Patients undergoing mandibular advancement device (MAD) therapy for obstructive sleep apnea (OSA) may experience changes in jaw position and altered occlusion. This could potentially contribute to the development or exacerbation of TMD symptoms. The literature on the long-term impact of MAD treated for OSA on TMD is scarce. Hence, this review was undertaken to ascertain the occurrence of TMD in MAD users.
METHODS
A comprehensive search protocol was implemented across several online databases using MeSH keywords and Boolean operators. A standardised data extraction form was developed specifically for this review. Two reviewers independently extracted the data. RoB-2 was used to evaluate the methodological quality of the included studies.
RESULTS
A total of 13 clinical studies were selected for this review. Some studies reported a significant reduction in the severity and frequency of TMD symptoms following MAD treatment. However, other studies did not observe significant changes in TMD symptoms or TMJ-related parameters from baseline to follow-up intervals. Temporary increases in TMJ-related pain or symptoms at the beginning of the follow-up period, which later subsided, were reported in some studies. Overall, MAD was not discontinued in any OSA patient due to TMDs.
CONCLUSION
The findings reveal that different outcomes associated with TMD are affected differently by MAD treatment for OSAS. According to a few studies, MAD therapy significantly reduced the severity and frequency of TMD symptoms. Other research, however, found no appreciable modifications in TMD symptoms or TMJ-related indicators. Although the overall results point to no significant effect of MAD treatment on TMD symptoms, the disparity in results between studies highlights the need for additional studies using standardised approaches.
Topics: Humans; Occlusal Splints; Sleep Apnea, Obstructive; Temporomandibular Joint Disorders; Pain; Mandibular Advancement; Treatment Outcome
PubMed: 37644889
DOI: 10.1111/joor.13574