International journal of dental hygiene最新文献

Objectives

We aimed to develop a predictive model for chewing difficulty using the EuroQol-5 dimension measure (EQ-5D).

Methods

We included 6643 individuals aged ≥ 65 years (mean age: 72.6 ± 4.96 years; women: 3761 [56.6%]) who had completed the sixth (2013–2015) and seventh (2016–2018) Korea National Health and Nutrition Examination Survey (KNHANES). The participants were further divided into young-old (65–74 years) and old-old (≥ 75 years) adults. Data from the sixth KNHANES were used to establish an internal validation model (overall, young-old and old-old adult populations were 3472, 2271 and 1201, respectively). Data from the seventh KNHANES were used to establish an external validation model (overall, young-old and old-old adult populations were 3171, 1879 and 1292 participants, respectively). We evaluated chewing difficulty using the EQ-5D (Model 1) and comparative models, subjective oral health status indicators (SOHSI) and objective oral health status indicators (OOHSI).

Results

Compared with SOHSI and OOHSI, EQ-5D showed similar predictive utility for chewing difficulty in both the internal and external validation models.

Conclusions

Effect sizes, quantified using Cohen's d, indicated that EQ-5D parameters had a moderate impact on the prediction accuracy for chewing difficulties.

Aim

This in vitro study compared the effect of two commercially available silver diamine fluoride (SDF) products on dentinal tubule (DT) occlusion and dentin permeability.

Methods

Sixty-six dentin discs (1.0 mm thick) were divided equally into six groups: acid-etched with no treatment (negative control—NC), etched and sealed with nail varnish (positive control—PC), non-etched and treated with Advantage Arrest (AA), non-etched and treated with Topamine (TP), etched and treated with AA, and etched and treated with TP. Eight specimens from each group were tested for permeability using the dye percolation method. The remaining three samples from each group were assessed for dentinal tubule occlusion, depth of SDF penetration, and elemental analysis using a scanning electron microscope coupled with an energy-dispersive X-ray (SEM/EDX) system. One-way ANOVA and Tukey's post hoc test were used to analyze the results.

Results

TP exhibited lower (p < 0.05) dye percolation compared to AA. While both SDF materials showed a statistically similar (p > 0.05) penetration depth in the DT, none of them had the ability to completely occlude all the DTs. AA exhibited more silver and fluoride ion deposition on etched dentin than TP, and both materials showed a similar increase in the deposition of Ca and P compared to NC.

Conclusions

Whereas the effectiveness of dentin tubule (DT) occlusion varies based on the material used, both tested SDF products exhibit the capability to seal dentinal tubules, decrease dentin permeability, and promote dentin remineralization. These findings suggest their potential advantage in managing dentin hypersensitivity.

Objective

To evaluate the effectiveness of chewing sugarless gum (SG) after water-rinsing in removing retained Oreo chocolate cookies (CC) from occlusal surfaces of teeth with and without fissure-sealant (FS).

Methods

A prospective study was performed on healthy children receiving prophylaxis at the paediatric-dentistry department. Immediately afterward, they chewed two CC. The occlusal surfaces of their posterior teeth were photographed 3 times: after 10 min, after 1 min of water-rinsing and after 4 min of chewing SG. An independent dentist screened all photos for the presence (partial or complete) or the absence of retained CC.

Results

Participants included 28 children 7–14-year-old, with 100 primary and 214 permanent molars, of which, 150 teeth had FS. After chewing two CC, 290 (92.4%) teeth had retained CC. Water-swishing removed all, partial or none of the CC in 23%, 72.4% and 4.6% of the teeth, respectively. The effectiveness of chewing SG in completely removing retained CC was significantly higher than water-rinsing (p < 0.001), OR = 43.83, Cramer's V value = 0.871, suggesting a very strong correlation.

The presence of FS raised the probability of completely removing retained CC after SG or water-rinsing (p < 0.001, OR = 107.7 and 25.9), with Cramer's V = 0.66 and 0.57, respectively, means a very strong association, as compared to teeth without (For both p < 0.001).

Conclusion

Chewing gum for 4 min was significantly more effective than water-rinsing for 1 min in removing retained CC. Moreover, FS considerably decreased the probability of retained CC on occlusal surfaces and increased the effectiveness of SG in removing it.

Objectives

This retrospective study aimed to evaluate the outcomes of nonsurgical periodontal therapy performed by senior dental students.

Methods

Electronic records of patients treated by senior dental students at the comprehensive care clinic in King Abdulaziz University Dental Hospital were reviewed retrospectively. Patients diagnosed with gingivitis or periodontitis who had undergone at least one session of scaling and root planing were included in this study. The following periodontal parameters were assessed: BOP, PI, PD and number of residual pockets.

Results

A total of 618 patients were included in this study (60.2% females and 39.8% males). BOP reduced from a median of 40% (IQR: 26.0%–62.0%) at baseline to 13% (IQR: 9.0%–20.3%) at re-evaluation in the gingivitis group (p < 0.0005). Similarly, a significant reduction in BOP, from 45% (IQR: 28.0%–64.3%) at baseline to 14% (IQR: 9.0%–21.5%) after phase I therapy, was observed in the periodontitis group (p > 0.001). In both groups, 31%–32% of patients had BOP < 10 at re-evaluation. PD of ≥ 5 mm was observed in 50.8% of patients with periodontitis at baseline; however, 38% of these patients had no residual pockets at re-evaluation.

Conclusion

NSPT performed by senior dental students was effective in improving the periodontal status of the patients. Both gingivitis and periodontitis patients showed significant improvement in BOP and PI. Approximately, 32% of patients showed a reduction in BOP suggestive of a bleeding score associated with periodontal health. Moreover, patients diagnosed with periodontitis exhibited a significant reduction in the number of sites with deep probing (≥ 5).

Objective

To determine how differences in abrasiveness (RDA) influence cleaning capabilities of toothpastes.

Methods

For this in vitro trial, 60 bovine dentin samples were prepared and divided into six groups (G1–G6; n = 10). Groups G1–G5 were arranged in order from low to high toothpaste abrasiveness (G1: RDA: 12, G2: RDA: 29, G3: RDA: 43, G4: RDA: 71, and G5: RDA: 143). Samples in group G6 were used as a negative control and later brushed with pure artificial saliva. In preparation for testing, the dentin samples were stained with a black tea mixture. The respective toothpastes were mixed with artificial saliva in a 1:2 ratio to produce a toothpaste slurry. The samples were brushed for a total of 25 min (with measurement intervals at 2-, 5-, 10-, and 25-min) using a manual toothbrush in an automated brushing machine. The cleaning efficacy of the toothpastes was determined using photographs connected to a planimeter computer program and statistically evaluated.

Results

Analysis of the median cleaning efficacy values showed that the toothpastes with a higher abrasiveness achieved a greater cleaning effect at each time point. All toothpastes showed a statistically significant difference (p < 0.05) in their cleaning efficacy (taking into account the median, interquartile range (IQR), minimum and maximum values) after 25 min of brushing.

Conclusions

With increasing RDA value, the cleaning efficiency of the toothpastes tested rises. However, a doubling of the RDA value does not necessarily elicit a twofold increase in cleaning effect.

Objectives

To assess the feasibility of using a faecal occult blood test (FOBT) kit as a screening tool for periodontal disease. Additionally, the study aimed to evaluate the test's sensitivity and specificity while exploring the influence of factors like age, sex and the number of teeth on its performance.

Methods

A prospective observational case–control study involving 150 participants divided into three groups on the basis of the basic periodontal examination index: healthy (n = 21), gingivitis (n = 52) and periodontitis (n = 77). Salivary occult blood tests were conducted using the Onsite FOB-Hi Rapid Test. Descriptive and analytical statistical analyses were performed using Fisher's exact test and chi-square tests.

Results

The FOBT kit demonstrated a sensitivity of 91% and a specificity of 100%. The number of teeth significantly influenced test results (p value = 0.021, chi-square). Age (p value = 0.09, chi-square) and sex (p value = 0.213, chi-square) did not significantly impact the test's performance.

Conclusion

The FOBT kit demonstrates high sensitivity (91.3%) and specificity (100%) as a screening tool for periodontal disease. Its affordability and global availability make it suitable for detecting periodontal disease across different age groups, sexes and numbers of teeth.

Background

Dentists are at greater risk of work-related musculoskeletal disorders (WMSDs) which can be caused by repetitive movements, improper posture and long working hours. If ergonomic principles are applied in the field of dentistry, they help to prevent occupational ergonomic health hazards and provides more comfort to the dentist and patient.

Objective

To obtain information regarding dental ergonomics practice of dentists in Indonesia and its related factors.

Methods

A cross-sectional study was conducted using a purposive sampling method via Google Form to 231 dentists in DKI Jakarta, Indonesia from November to December 2022. The questionnaire consisted of 34 items divided into five sections; socio-demographic, job characteristics, knowledge of dental ergonomics, attitude towards dental ergonomics and the practice of dentists regarding dental ergonomics. Bivariate analysis was conducted using Pearson Chi-square Test.

Result

76.2% dentists have poor dental ergonomics practice. There is a significant relationship (p-value < 0.05) between the practice of dental ergonomics and age group, years of practical experience and level of knowledge.

Conclusion

Most Indonesian dentists (76.2%) still lack of dental ergonomics practice. Age, duration of work experience and ergonomic dental practice knowledge are significantly correlated.

Objectives

Gingivitis is a common inflammatory lesion caused by the build-up of oral biofilm and is an essential precursor to periodontitis. For its treatment, oral hygiene habits, such as dental flossing, must be improved, and adjunctive materials, such as hyaluronic acid, may be used to reduce plaque formation and gingival inflammation. This study aimed to assess the effects of 0.2% hyaluronic acid gel-impregnated dental floss on the clinical periodontal markers of patients with gingivitis.

Material and Methods

This clinical study adopted a split-mouth, randomised controlled trial design. After clinical data were assessed at baseline, and supragingival scaling was performed, bilateral gingivitis regions were randomly allocated to either the hyaluronic acid gel-impregnated floss group or just the floss group using a computer-generated randomisation table. Clinical parameters were recorded at 1, 2 and 4 weeks after treatment.

Results

Over the 4-week trial period, all patients showed significant improvements in all clinical periodontal markers. The 1-week plaque index, 4-week gingival index and 4-week papillary bleeding index were significantly lower in the test group than in the control group (p < 0.05).

Conclusions

The use of hyaluronic acid-impregnated dental floss has resulted in more significant improvements in clinical periodontal parameters compared to dental floss alone. For ease of use, ready-made products with this innovative formulation may be produced.

Trial Registration: ClinicalTrials.gov identifier: NCT06307041