Journal of oral rehabilitation最新文献

Background and objectives: Weight loss is a critical health issue among the older population. This study aimed to explore the association between weight loss and oral health in older adults.

Methods: We used cross-sectional data from the Uonuma Chronic Kidney Disease Cohort Study. The binary logistic regression models were fitted to estimate the relationship between weight loss and independent variables including the number of teeth present.

Results: The participants included 1656 females and 1625 males. There were 1217 females (73.4%) and 1236 males (76.0%) with normal BMI (18.5 ≤ BMI < 25) in the previous year. Weight loss was determined over a 12-month period. Individuals with normal BMI in previous year, and those with weight loss (≥ 5%) or those whom maintained a stable weight were further analysed. The regression analysis (model 3, fully adjusted) showed that females with 0 and 1-10 teeth present had a higher likelihood of losing weight (OR = 4.07; 95% CI = 1.85-8.93, OR = 2.33; 95% CI = 1.24-4.39) compared with those with 20 or more teeth. Current smokers had a higher likelihood of losing weight (OR = 3.15; 95% CI = 1.01-9.76) than lifelong abstainers. Among males, both current and previous smokers showed a higher likelihood of losing weight (OR = 4.94; 95%CI = 1.76-13.8, OR = 3.35; 95% CI = 1.29-8.68) than those who never smoked.

Conclusions: This study indicates that the number of teeth and smoking are both linked to weight loss in females. However, in males, the association between the number of teeth and weight loss may be compromised due to the high prevalence of smoking in this group.

Background: Recently, the Standardised Tool for the Assessment of Bruxism (STAB) has been developed for use in clinical and research settings.

Objectives: The aim of the present study is to describe the process of forward and back translation and pilot testing of the STAB into Italian.

Methods: The English version of the STAB was adopted as a template for translation into other languages, according to a step-by-step procedure led by the expert STAB bruxism panel and mother tongue experts in the field. In detail, the translation team was made up of 12 subjects: three study coordinators, two forward translators, two back-translators and five expert panellists. Following the translation process, a pilot test in patients, dentists and dental students was performed using the 'probing' method (i.e., subjects were questioned by the examiners about the perceived content and interpretation of the items) with the aim to assess the comprehensibility of the questions and response options, and the feasibility of the tool.

Results: This paper describes the translation process of the STAB and provides the outcomes of the pilot testing phase and the face validity assessment. The preliminary results suggest that, from a global point of view, the STAB reflects the characteristics required in clinical and research settings.

Conclusion: Thanks to the translation process, the Italian version of the STAB can be assessed on-field and introduced in the clinical and research field to get deeper into the study of bruxism epidemiology in Italy.

Background: Temporomandibular disorders (TMD) are a prevalent ailment with a global impact, affecting a substantial number of individuals. While some individuals are receiving treatment from orthodontists for TMD, a significant proportion of individuals obtain knowledge through websites.

Objectives: Our purpose had been to evaluate, from a patient-oriented perspective, the readability of home pages of websites scored in the 10 most prominent devoted to TMD. We also determined what level of education would have been needed to get an overview of the information on the websites under scrutiny. This approach ensures that our findings are centred on the patient experience, providing insights into how accessible and understandable websites about TMD.

Methods: We determined the top 10 patient-focused English language websites by searching for 'temporomandibular disorders' in the 'no country redirect' plugin of the Google Chrome browser (www.google.com/ncr). The readability of the texts was assessed using the Gunning fog index (GFI), Coleman Liau index (CLI), Automated readability index (ARI) Simple Measure of Gobbledygook (SMOG), Flesch Kincald grade level (FKGL), Flesh reasing ease (FRE) (https://readabilityformulas.com).

Results: The mean Flesch reading ease index score was determined to be 48.67, accompanied by a standard deviation of 15.04 and these websites require an average of 13.49 years of formal education (GFI), with a standard deviation of 2.62, for ease of understanding.

Conclusion: Our research indicates that a significant proportion of websites related to TMD can be defined as a level of complexity that exceeds the ability to read comprehension of the general population.

Background: Temporomandibular disorders (TMD) are multifactorial musculoskeletal pain and dysfunctions in temporomandibular joints (TMJs) and masticatory muscles. Genetic factors play a role in TMD-related pain, but only a few genome-wide association studies (GWAS) have been conducted.

Objective: The aim of this GWAS was to explore genetic factors associated with painful TMD in Finnish populations.

Methods: Data from two epidemiological surveys, the Northern Finland Birth Cohort 1966 (NFBC1966) and the Health 2000 Survey in Finland, including altogether 468 cases and 6833 controls, were used. Case definition was based on pain on palpation of masticatory muscles and/or TMJs. GWASs of the whole data and stratified by sex were conducted from both cohorts using additive models, followed by meta-analysis of the two cohorts. Replications of the previously reported TMD risk loci (rs73460075, DMD; rs4794106, SGCA; rs73271865, SP4; rs60249166, RXP2; rs1531554, BAHCCI; rs5862730, OTUD4/SMAD1; rs10092633, SFRP1; rs34612513, SOX14/CLDN18; rs878962, TSPAN9) were also investigated.

Results: Four genome-wide significant loci were found in sex-stratified analysis of NFBC1966, including associations at three loci in males (rs1023114, PRIM2, p = 5 × 10^-9; rs4244867, ALG10, p = 3 × 10^-8; rs79841648, ADCYAP1, p = 4 × 10^-9) and one locus in females (rs148476652, DNER, p = 4 × 10^-9). However, the results could not be replicated in the Health 2000 Survey or in the meta-analysis of these two cohorts. The previous TMD GWAS associations did not replicate in our data either.

Conclusion: Several TMD pain-associated variants were found in sex-stratified analysis of NFBC1966, suggesting the role of neuroendocrine stress responses and central nervous system. These findings need to be confirmed in future studies.

Background: Although varieties in chewing patterns are essential for the transformation of food in mouth and thereby its sensorial perception, there are few reports that show the effect of chewing frequency on food oral processing and its properties.

Objective: The current study tested whether consciously controlled chewing frequency influences the oral processing of habitually consumed foods and their sensory analysis.

Method: Chewing behaviour was analysed during the mastication of mushed potato samples by 20 participants in two separate test sessions, in which they were instructed to chew the sample in their habitual manner (free chewing test) or follow a preprogrammed video animation displayed on a screen, wich guided them to maintain a constant chewing frequency (F-const chewing test). Electromyography recording, sensory tests and rheological analysis of bolus properties were performed.

Results: Oral processing in the F-const chewing test required longer chewing time due to the elongation of chewing cycle time, rather than an increased number of chews. The contribution of jaw muscle activity to chewing effort changed resulting in greater activity of temporalis muscle in the F-const chewing test. During volitional control of chewing frequency, the texture perception with respect to cohesiveness, adhesiveness and moisture scoring differed from that observed in habitual chewing, despite the similar physical properties of the bolus. These variabilities resulted in higher acceptability of the food sample.

Conclusion: Since this study clearly shows how control of chewing frequency led to changes in oral processing of food and its sensorial properties, nutritionists can employ the findings to optimise the dietary recommendations decreasing eating rate and increasing palatability of the target products.

Background: Psychosocial screening is a valuable part of the assessment of patients with orofacial pain, as psychosocial factors will affect prognosis and treatment outcomes. Paper-based questionnaires are predominately used to assess the degree of psychosocial comorbidity; however, digital alternatives for screening questionnaires may be more cost-effective and resource-saving if patients are receptive to using them.

Objective: To evaluate how patients perceive digital psychosocial screening in dentistry.

Method: Using a qualitative approach, individual semi-structured interviews were conducted with a purposive sample of adult patients with orofacial pain (n = 16) recruited from specialist dental clinics in Umeå and Gävle, Sweden. The interviews were transcribed verbatim and then analysed using Qualitative Content Analysis. Before the interviews, patients first completed the paper-based questionnaires and then the digital version.

Results: The analysis of patients' experiences resulted in an overarching theme: Patients appreciate a holistic approach, thus valuing psychosocial screening, and they particularly favour screening in a digital format. From this theme, two categories emerged: Perceptions about health shape patients' expectations of dental care, and with deeper understanding of the value of psychosocial assessment, patients appreciate a holistic approach that includes psychosocial factors. Digital screening is perceived by patients as a reliable, meaningful and environmentally sustainable method.

Conclusions: In general, the patients appreciated a holistic approach in dentistry and understood the value of psychosocial screening as part of this. From the patients' perspective, digital psychosocial screening was both acceptable and beneficial. The findings support the introduction of digital psychosocial screening into daily dental practice.

Background: According to the ICOP 2020, burning mouth syndrome (BMS) is a chronic orofacial pain disorder characterised by an intraoral burning sensation, which represents the main diagnostic criterion. However, some patients experience other symptoms such as xerostomia, taste alterations and globus, without the burning sensation (non-BMS).

Objective: This study aims to explore non-BMS as a distinct subclinical entity by comparing the classical BMS with this new group of patients in a case-control study, addressing gaps in current diagnostic criteria.

Methods: 83 non-BMS patients were compared with an equal number of BMS patients matched for age and sex. Data on sociodemographic and risk factors, systemic comorbidities and drug intake, symptom patterns, psychological profiles were collected and statistically analysed.

Results: No significant differences between BMS and non-BMS groups were found in sociodemographic characteristics, comorbidities, drug consumption and extraoral symptoms. Both groups reported similar symptoms patterns, with discomfort intensifying in the evening. Although oral symptoms prevalence varied, with the burning sensation exclusive to BMS patients, none of these differences reached statistical significance. Psychological assessments revealed mild depression (17 [14-19] vs. 17 [14-20], p < 0.981), mild to moderate anxiety (18 [15-21] vs. 17 [15-20.5], p < 0.767) and sleep disturbance (5 [4-7] vs. 8 [5-10], p < 0.001) in both groups.

Conclusion: Non-BMS patients exhibit similarities to BMS patients yet remain unclassified under current diagnostic criteria. Therefore, we have suggested the term "Oral Dysaesthetic and Perceptual Disorder (ODPD)" to define these patients (non-BMS). This study emphasises the need to expand diagnostic criteria to better identify and manage ODPD patients.

Introduction: Recent studies have shown that capsaicin improves the pharyngeal swallowing reflex. However, the mechanism by which capsaicin alters mastication and oesophageal function remains unclear. This study aimed to investigate the effects of capsaicin on masticatory and oesophageal function.

Materials and methods: Participants were 12 healthy individuals (7 men, 5 women: aged 31.5 ± 3.0 years). The participants ingested five rice cakes without capsaicin and then five rice cakes containing capsaicin. Total mastication frequency, total mastication time, and mastication rate were measured. Pharyngeal and upper oesophageal sphincter (UES) parameters were evaluated using high-resolution manometry (HRM). The masticatory and HRM parameters were compared between the ingestion of capsaicin-containing and non-capsaicin containing rice cakes.

Results: The total mastication frequency and total mastication time(s) for capsaicin ingestion were significantly smaller (20.3 ± 9.4 vs. 22.4 ± 7.4; p = 0.011) and shorter (14.2 ± 7.0 vs. 15.4 ± 5.6; p = 0.038), respectively, than those for non-capsaicin ingestion. Comparison of the HRM parameters revealed significantly higher hypopharyngeal contractile integral (mmHg-s-cm) (56.6 ± 40.7 vs. 49.7 ± 43.6; p = 0.016) and proximal oesophageal contractile integral (mmHg-s-cm) (492.3 ± 292.64 vs. 381.2 ± 266; p < 0.001), significantly shorter UES basal pressure (mmHg) (93.6 ± 37.8 vs. 114.5 ± 43.4; p < 0.001), and significantly longer UES relaxation time (ms) (486.7 ± 90.7 vs. 431.2 ± 82.3; p < 0.001) for capsaicin ingestion than for non-capsaicin ingestion.

Conclusions: Decreased mastication frequency and time, increased hypopharyngeal and proximal oesophageal contractile integral, and prolonged UES opening time with capsaicin ingestion suggests that capsaicin improves oral, pharyngeal and oesophageal phases of swallowing.

Background: Obstructive sleep apnea syndrome (OSAS) is a prevalent condition characterised by repeated episodes of partial or complete obstruction of the upper airway during sleep, leading to disrupted sleep and associated morbidities. Orthognathic surgery (OGS) has been proposed as a treatment option for OSAS, aimed at anatomically repositioning the maxillofacial structures to alleviate airway obstruction. This systematic review and meta-analysis aimed to evaluate the efficacy of OGS in reducing apnea-hypopnea index (AHI) and Epworth Sleepiness Scale (ESS) scores among OSAS patients.

Methods: We conducted a comprehensive literature search across multiple databases for studies assessing the outcomes of OGS in OSAS patients, focusing on changes in AHI and ESS scores. The inclusion criteria encompassed observational studies, cohort studies, and randomised control trials. Data extraction and quality assessment were performed independently by two reviewers. Random-effects meta-analysis was utilised to pool mean differences (MD) of AHI and ESS scores preoperatively and postoperatively, with 95% confidence intervals (CI) calculated.

Results: A total of 8 studies met the inclusion criteria, where OGS was shown to be slightly more effective in correcting OSAS than the other modalities assessed, primarily CPAP. The pooled MD for AHI demonstrated a significant reduction in scores post-OGS (MD = 29.84, 95% CI: 14.17-45.50, p < 0.0001) with substantial heterogeneity (I² = 95%). For ESS, the pooled MD indicated a non-significant reduction (MD = 1.91, 95% CI: -1.29 to 5.12, p = 0.24) with high heterogeneity (I² = 81%).

Conclusion: Orthognathic surgery appears to be an effective intervention for reducing AHI in patients with OSAS, suggesting a potential to improve the objective measures of sleep apnea. However, the effect on subjective sleepiness scores, as evaluated by ESS, was not statistically significant. The high heterogeneity among studies warrants individualised patient assessment when considering OGS for OSAS. Further research is needed to identify factors contributing to the variability of outcomes and to assess the long-term benefits and risks associated with the procedure.