Dietary behavior and knowledge of dental erosion among Chinese adults

Evaluation and Comparison for the Efficacy of 810 nm Diode Laser, Nano Carbonate Apatite and Their Combination Over Dentinal Tubules Occlusion: An In Vitro Scanning Electron Microscopic Study

BACKGROUND

Dentin hypersensitivity (DH) involves sensitive symptoms, because of exposure of the dentinal tubules. Various materials have been utilized to occlude dentinal tubules for the treatment of DH. Here is a comparative evaluation of nano-carbonate apatite (n-CAP), diode laser, and their combination over the occlusion of dentinal tubules.

MATERIALS AND METHOD

Ten intact first premolars were used in this study, out of which 40 dentin disk specimens were obtained by hard tissue microtomy. Four study groups were formulated out of which one was the control group and the remaining three were test groups. Scanning electron microscopy (SEM) was done to evaluate the diameter of the dentinal tubules in each group.

RESULTS

On examining data, it was observed that the mean diameter of dentinal tubules in four study groups of control, laser, n-CAP, and n-CAP + laser was found to be 3.40, 2.00, 0.46, and 0.02 respectively. This shows the significant reduction in the diameter of dentinal tubules in the test groups when compared with the control group.

CONCLUSION

Among all the measures used to see for a reduction in the diameter of dentinal tubules, the combination group was found to be most occluding, though each of the groups also had a significant reduction in the diameter of dentinal tubules. The present study showed that combination therapy offers a promising means of treating DH in a clinical setting when compared with the treatment of DH n-CAP containing dentifrice or laser irradiation alone.

Dual function of quercetin as an MMP inhibitor and crosslinker in preventing dentin erosion and abrasion: An in situ/in vivo study

OBJECTIVE

The aim of the present study was to evaluate the in situ/in vivo effect of quercetin on dentin erosion and abrasion.

METHODS

Human dentin blocks (2 × 2 × 2 mm) were embedded and assigned to 6 groups: 75 μg/mL, 150 μg/mL and 300 μg/mL quercetin (Q75, Q150, Q300); 120 μg/mL chlorhexidine (CHX, positive control); and deionized water and ethanol (the negative controls). The specimens were treated with the respective solutions for 2 min and then subjected to in situ/in vivo erosive/abrasive challenge for 7 d as follows: in vivo erosion 4 times a day and then in vivo toothbrush abrasion after the first and last erosive challenges of each day. Dentin loss was assessed by profilometry. An additional dentin specimen was used to evaluate the penetration depth of quercetin into dentin by tracking the spatial distribution of its characteristic Raman peak. Moreover, dentin blocks (7 × 1.7 × 0.7 mm) were used to detect the impact of quercetin on dentin-derived matrix metalloproteinase (MMP) inhibition by in situ zymography, and the inhibition percentage (%) was calculated. Additionally, the potential collagen crosslinking interactions with quercetin were detected by Raman spectroscopy, and the crosslinking degree was determined with a ninhydrin assay. Fully demineralized dentin beams (0.5 × 0.5 × 10 mm) were used to evaluate the impact of quercetin on the mechanical properties of dentin collagen fibre by the ultimate micro-tensile strength test (μUTS). The data were analysed by one-way analysis of variance and Tukey's test (α = 0.05).

RESULTS

Compared to the negative controls, all treatment solutions significantly reduced dentin loss. The dentin loss of Q150 and Q300 was significantly less than that of CHX (all P < 0.05). The amount of quercetin decreased with increasing dentin depth, and the maximum penetration depth was approximately 25-30 µm. In situ zymography showed that quercetin significantly inhibited the activities of dentin-derived MMPs. The inhibitory percentages of Q75 and Q150 were significantly lower than that of CHX (all P < 0.05), but no significant difference was found between Q300 and CHX (P = 0.58). The collagen crosslinking interactions with quercetin primarily involved hydrogen bonding and the degree of crosslinking increased in a concentration-dependent manner. Statistically significant increases in μUTS values were observed for demineralized dentin beams after quercetin treatment compared with those of the control treatments (all P < 0.05).

SIGNIFICANCE

This study provides the first direct evidence that quercetin could penetrate approximately 25-30 µm into dentin and further prevent dentin erosion and abrasion by inhibiting dentin-derived MMP activity as well as crosslinking collagen of the demineralized organic matrix.

Knowledge about caries and erosive tooth wear is confused among Norwegian high school students

OBJECTIVES

This study investigated differences in high school students' subjective and objective knowledge- and concerns about preventing caries and/or erosive tooth wear and the associations between these variables.

MATERIALS AND METHODS

A survey was conducted among students at 16 high schools in Norway. The survey included a range of fact-based questions to measure objective knowledge about caries and erosive tooth wear, as well as questions about students' perceptions of his/her own knowledge (subjective knowledge) and concerns about preventing the two conditions.

RESULTS

There were small differences in subjective knowledge about caries and erosive tooth wear among the 784 students who completed the survey (p < .01). However, students scored significantly higher on objective knowledge about caries (mean 2.99) than about erosive tooth wear (mean 1.45), p < .01, and seemed to confuse the two conditions. By contrast, students scored significantly worse on questions about beverages' potential to cause caries (mean 5.18) than to cause erosive tooth wear (mean 6.30), p < .001. Finally, objective knowledge about caries was positively associated with subjective knowledge about caries, but corresponding associations could not be found for erosive tooth wear.

CONCLUSIONS

Knowledge about caries and erosive tooth wear seemed to be confused among Norwegian high school students.

Awareness and knowledge of dental erosion and its association with beverage consumption: a multidisciplinary survey

BACKGROUND

Erosive tooth wear has significant impacts on oral and general health. This study aimed to measure the awareness of dental erosion to establish the relationships among sociodemographic factors, awareness and knowledge of dental erosion, and beverage consumption behaviours, in a sample of university students in Australia.

METHODS

All undergraduate students enrolled in the targeted programs at an Australian University were invited. A total of 418 students consented to participate. Each was assessed with an online questionnaire.

RESULTS

The awareness rate of dental erosion was 92.1%. Soft drinks and fruit juice were most often perceived as acidic beverages by the respondents. The students of greater age, and studying pharmacy, paramedicine, physiotherapy or science, were less likely to be aware of dental erosion. Those students that were aware of dental erosion also had better knowledge of dental erosion, which was associated with a reduced quantity of daily acidic beverage consumption as well. The students that predominantly resided overseas had less knowledge of dental erosion. The students that were of greater age, that were studying clinical science, pharmacy, medical science, paramedicine, or science, and that correctly identified more types of acidic beverages, more often consumed acidic beverages in high-risk patterns.

CONCLUSIONS

Erosive tooth wear is a relevant matter in dentistry, nutrition and public health. Within a university setting, the effect of education on oral health literacy and beverage consumption behaviour is confirmed. Dental and health professionals should actively educate the individuals and communities about dental erosion and motivate them to change acidic beverage consumption behaviours.

The association between erosive tooth wear and diet, hygiene habits and health awareness in adolescents aged 15 in Poland

Purpose

The aim of the study was to assess the prevalence of erosive tooth wear (ETW) and risk indicators in the population of adolescents aged 15 in Poland.

Methods

Erosive tooth wear in 2639 participants was determined by calibrated examiners according to the BEWE scoring system, and the prevalence of risk factors was assessed on the basis of a survey.

Results

Erosive tooth wear was reported in 24.3% of participants. Initial loss of surface (BEWE 1) was the predominant finding, observed in 21.3% of participants. Hard tissue loss (BEWE 2 and 3) occurred very rarely, only in 3% of participants. Acidic diet, masculine gender and lower socio-economic status were associated with higher prevalence and severity of erosive lesions in the examined population.

Conclusion

Two modifiable factors—acidic diet and low health awareness—were found to be highly unsatisfactory in the adolescents aged 15 in Poland. Accordingly, to prevent the deterioration of the functionality and aesthetics of the teeth in young people, certain measures, such as routine clinical examination, education, dietary consulting and prophylaxis, should be implemented as early as possible, focusing predominantly on families with lower socio-economic status.

Knowledge on and treatment practices of erosive tooth wear among Finnish dentists

OBJECTIVES

To investigate Finnish dentists' knowledge on and means of recording, detecting and diagnosing erosive tooth wear (ETW). Treatment options and possible differences in treatment decisions between general and specialized dentists were also evaluated.

MATERIALS AND METHODS

An electronic questionnaire was sent by e-mail to 3664 Finnish dentists. Respondents' gender, age, work experience, field of specialty, and practice location were requested. The questionnaire also included a patient case where the dentists were asked about their choice of treatment. Statistical analyses were performed using means, proportions, and cross tabulations.

RESULTS

Response rate was 24% (n = 866). Almost all respondents (98.0%) recorded ETW in patient files, but only 4.1% used a detailed scoring system. Of the respondents, 64.4% usually found the cause of ETW. Use of carbonated beverages (84.3%), energy drinks (57.0%), and reflux disease (53.1%) were reported to be probable causes. The majority of the respondents (80.9%) usually assessed patient's dietary history while 1.9% evaluated saliva secretion rate. When asked about treatment decisions of ETW patients, the differences between general dentists and specialized dentists were not as obvious as hypothesized.

CONCLUSIONS

This study suggests that the Finnish dentists who participated in this survey are able to detect and/or diagnose erosive tooth wear, but there is variation in recording it. The differences in treatment decisions between general dentists and specialized dentists seem to be moderate. The treatment practices for ETW are not established and further research to create clinical guidelines seems to be needed.

Does delayed toothbrushing after the consumption of erosive foodstuffs or beverages decrease erosive tooth wear? A systematic review and meta-analysis

OBJECTIVE

Controversy exists regarding the effectiveness of delayed toothbrushing in decreasing erosive tooth wear (ETW). The purpose of this systematic review and meta-analysis was to assess the effects of delayed toothbrushing on ETW.

MATERIALS AND METHODS

This systematic review and meta-analysis was conducted according to the PRISMA statement and registered in PROSPERO (CRD42020200463). PubMed, Embase, and Web of Science databases were systematically searched with no publication year limits. Screening and data extraction were performed independently by two reviewers. In situ and in vitro studies comparing ETW after delayed and immediate toothbrushing following an erosive attack were included. Review Manager software 5.3 (The Cochrane Collaboration, Oxford, UK) was used for statistical analyses. Heterogeneity was assessed with the Cochran Q test and I² statistics.

RESULTS

Of the 565 potentially relevant studies, 26 full-text articles were assessed for eligibility. Twelve articles were included in the systematic review, and 11 were included in the qualitative analyses. No significant difference in the ETW of human enamel was observed between delayed and immediate toothbrushing (P = 0.13), whereas significantly less ETW of bovine enamel was observed after delayed toothbrushing (P < 0.001). No significant difference in the ETW of bovine dentin was observed between delayed and immediate toothbrushing (P = 0.34). Studies on human dentin were not available. Subgroup analyses revealed a significant contribution of the use of fluoridated toothpaste to decreasing the ETW of human enamel after erosion and toothbrush abrasion (P = 0.02).

CONCLUSIONS

Bovine and human teeth behaved differently in response to erosion and toothbrush abrasion. Delayed toothbrushing after an erosive attack was not effective at decreasing the ETW of human enamel compared to immediate toothbrushing, whereas it was effective at decreasing the ETW of bovine enamel.

CLINICAL RELEVANCE

Delayed toothbrushing alone after the consumption of erosive foodstuffs or beverages is not capable of preventing erosive enamel wear.

Knowledge of and attitudes towards erosive tooth wear among students of two Chinese universities

BACKGROUND

To assess the knowledge of and attitudes towards erosive tooth wear among dental, medical, and non-medical university students of two Chinese universities.

METHODS

A questionnaire containing 15 questions on knowledge of erosive tooth wear and 10 questions on attitudes towards erosive tooth wear was designed, and its psychometric properties (reliability and validity) were analysed in a pilot study (n = 120 students). The following 3 groups of university students (n = 635) were recruited based on a convenience sampling technique and were distributed the questionnaire via an online survey system: dental students (DSs), medical students (MSs), and non-medical students (NSs). Differences in the scores between groups and genders were analysed by one-way analysis of variance (ANOVA). The Pearson correlation coefficient was used to determine the association between the knowledge and attitude scores (P < 0.05).

RESULTS

The questionnaire was found to be reliable, valid and reproducible. A total of 435 students participated in this study (response rate: 69.6%). The knowledge score of the DSs (11.5 ± 3.4) was significantly higher than those of the NSs (5.5 ± 4.0) and MSs (6.1 ± 4.0) (P < 0.001). The attitude score of the DSs (45.2 ± 6.5) was significantly higher than those of the NSs (41.1 ± 6.9) and MSs (41.8 ± 6.4) (P < 0.001). The majority of DSs expressed attitudes that were more accurate and positive than those expressed by the other 2 groups. The attitude score was positively correlated with the knowledge score (r = 0.237, P < 0.001).

CONCLUSIONS

Dental students had more accurate knowledge of and more positive attitudes towards erosive tooth wear than medical and non-medical students. In this population, a positive correlation was established between knowledge of and attitudes towards erosive tooth wear.

Oral health status and associated lifestyle behaviors in a sample of Iranian adults: an exploratory household survey

BACKGROUND

Poor oral hygiene can lead to serious diseases, such as periodontitis, tooth decay, pain and discomfort in teeth or gums, infections, and loss of teeth. In Iran, adults aged 50 y and older are a high-risk group for oral health problems, and this age group will grow in the coming decades. Despite increasing attention on healthy aging, there is relatively less emphasis on oral hygiene and health-related problems. The present study investigated the oral health status of Iranian adults using the oral health self-assessment questionnaire (OHQ) developed by the World Health Organization (WHO).

METHODS

A population-based household survey of a sample of adults aged 18-65 y was conducted. In this study, the participants were recruited between May and October 2016 in Tabriz, Iran, and the study population was sampled using a multi-stage cluster sampling design. The WHO's OHQ for adults was used for measuring oral health status and oral hygiene behavior.

RESULTS

In total, 2310 respondents completed the survey. The mean age (SD) of the participants was 41.6(23.4) y. Males accounted for 48.8% of the participants. Of the 2310 respondents,187 (8.1%) individuals were edentulous, 152(20.7%) of whom were aged 51-65 y. Furthermore, 72.3% of those aged 51-65 y were dentate, and 50% of adults aged 51-65 y said they had 20 or more teeth. About one-third of the participants reported that they did not brush their teeth daily (23% of those aged 18-35 y,35.9% of those aged 36-50 y, and 44.6% for those aged 51-65 y). In the sample, 39.4% of individuals aged 18-35 y,34.1% of individuals aged 36-50 y, and 26.6% of individuals aged 51-65 y had visited a dentist less than 6 month ago. One-third of the participants consumed sweets and sugary drinks daily.

CONCLUSIONS

Although the majority of Iranian adults considered their oral health status good, only a small percentage of the sample visited their dentist regularly. Furthermore, visits to the dentist declined in accordance with increasing age, a time when the incidence of oral health problems may increase. Poor oral health may increase the risk of adverse health outcomes, particularly among the aging population.

Analysis of food frequency and acquired dietary allowance (ADA) in relation to dental caries and dental erosion affecting dental postgraduate students of Sawangi: A cross-sectional survey

BACKGROUND

The development and integrity of the oral cavity and the progression of oral diseases may be affected by the nutritional status and diet of the person. The most ubiquitous oral diseases are found to be dental caries and periodontal diseases in the world. Therefore, the aim of the present study was to assess the correlation between food frequency with nutrient adequacy ratio (NAR), NAR with dental caries, and dental erosion.

MATERIALS AND METHODS

This study was conducted among dental postgraduate (PG) students. A self-administered questionnaire was developed with consisted food frequency, acquired dietary allowance, Decayed, Missing Filled teeth (DMFT) index, and tooth wear index. Correlation was assessed between food frequency and NAR, NAR with dental caries and dental erosion.

RESULTS

Out of 123 PGs 100 PGs participated in the study making response rate 81%. Consumption of chapatti, pulses vegetables white rice, sugar, milk and milk products, and acidic food is on the daily basis mostly and it was statistically significant (P < 0.05). A statistically significant difference (P < 0.05) was also seen between frequency of consuming food items in decreasing order is fats, legumes, roots and tubers, fruits, meat and meat products, fried foods, vitamin and mineral supplements those who eat daily and never.

CONCLUSION

The significant association between food frequency and nutrient adequacy ratio might be helpful assessing nutritional values. The high use of acidic beverages is a serious threat to the health of the oral cavity.

Erosive wear of the primary dentition: who is aware of it?

AIM

To determine the influence of erosive tooth wear in the primary dentition on parental perceptions of oral health.

METHODS

This cross-sectional study involved a standardised clinical examination of 775 preschool aged children and a parent-administered questionnaire. Erosive tooth wear was measured using the Basic Erosive Wear Examination Index.

RESULTS

71% and 81% of 3 (n = 256) and 5 year-old children (n = 337) respectively exhibited signs of erosive tooth wear. Prevalence was influenced by region (p = 0.049) (p = 0.007) in both age cohorts (χ², p < 0.05) respectively and by parental level of education (p = 0.012) in the 5-year-old cohort. Parental perception of oral health was significantly associated (χ², p < 0.05) with parental level of education in the 5-year-old cohort and with the presence of dental caries, reports of pain and dental appearance of the child in both age cohorts. Parental perceptions were unaffected by the degree of erosive tooth wear their child exhibited (p = 0.0564), (p = 0.739) in both age cohorts respectively.

CONCLUSIONS

Erosive dental tooth wear is increasingly observed in the primary dentition however is not perceived as an oral health issue by parents. Its diagnosis and management therefore, fall heavily within the remit of the dental practitioner.

A Comparative Study of Oral Health Status between International and Japanese University Student Patients in Japan

Background: The number of international students enrolled in universities in Japan is increasing. To provide better oral care services for international students, we have to understand their oral environment and dental health behaviors. However, few studies have investigated the oral health status of international university students. The object of the present study was to clarify the current oral status of international university students. Methods: The subjects were students who visited the dental department at the University of Tokyo’s Health Services Center between April 2012 and March 2013. Our medical records were reviewed with regard to the following items: attributes (nationality, gender, and age); chief complaint (reason for visit); history of dental treatment; mean number of decayed (D), missing (M) or filled (F) teeth as a single (DMFT) index; degree of calculus deposition; gingival condition; and oral hygiene status. Results: The records of 554 university students (138 international and 416 non-international students) were analyzed; 88.4% of the 138 international students were from Asian countries (n = 122), of which 47.1% were from China and 10.9% from Korea, followed by North America (5.8%), Europe (4.3%), and Africa (1.5%). Although no significant differences were found regarding the history of dental treatment between international and non-international students (49.3% and 48.8%, respectively), international students had a significantly higher dental caries morbidity rate (60.1%) than non-international students (49.0%). The international students showed a significantly higher DMFT value compared with the non-international students: 5.0 and 4.0 per individual, respectively. Severe calculus deposition was observed in international students compared with non-international students (51.9% and 31.7%, respectively). Conclusions: The international university students had poorer oral health status than the non-international students, even though the result might include many uncertainties and possible biases.

Oral Health Care in Hong Kong

Hong Kong, as a special administrative region of the People’s Republic of China, is a metropolitan city in Asia with a population of approximately 7.4 million. This paper reflects the oral health care situation in Hong Kong. Water fluoridation was introduced in 1961 as the primary strategy for the prevention of dental caries. The fluoride level is currently 0.5 parts per million. Dental care is mainly provided by private dentists. The government’s dentists primarily serve civil servants and their dependents, with limited emergency dental service for pain relief offered to the general public. Nevertheless, the government runs the school dental care service, which provides dental treatments to primary school children through dental therapists. They also set up an oral health education unit to promote oral health in the community. Hong Kong had 2280 registered dentists in 2017, and the dentist-to-population ratio was about 1:3200. The Faculty of Dentistry at the University of Hong Kong is the only institution to provide basic and advanced dentistry training programs in Hong Kong. Dental hygienists, dental surgery assistants, dental therapists, and dental technicians receive training as paradental staff through the university or the government.

Awareness and knowledge of dental erosion among Yemeni dental professionals and students

BACKGROUND

This study explored Yemeni dentists' and dental students' knowledge about the associated factors, approaches to diagnosis and preventive methods of dental erosion (DE), as well as any associations between DE awareness and some potentially related variables.

METHODS

A self-administered questionnaire was distributed to general dental practitioners (n = 323) in Sanaa and to fifth year dental students (n = 97) at the University of Science and Technology, Sanaa, Yemen during the period from July to November 2013. Descriptive and logistic regression analyses were conducted.

RESULTS

Overall response rate was 79 %. Results indicated that 61 % of respondents learned about DE from dental school, 27 % from their own studies and the rest from continuing education courses and the media. DE was reportedly most frequently seen on incisors by 46 % of respondents and on premolars and molars by 24 %. While 48 % reported DE to be more common in male patients, no gender differences were reported by 20 % of respondents. Acidic drinks were believed to be causative factors for DE by 41 % of dentists and 52 % of students, while 90 % of respondents believed that patients' dietary history is important during DE diagnosis. As preventive measures for DE, reduction of acidic drink consumption was advised by 51 % of respondents while only 37 % advised their patients to use fluoridated toothpastes. Younger respondents (≤35 years) were more likely to identify the commonly-known causative factors for DE (P = 0.024). Twenty-seven percent of the respondents reportedly used an index to grade DE. Dental students were more likely than dentists to use such an index (P <0.001) and to more frequently advise their patients to reduce intake of acidic drinks (P = 0.02) compared to dentists.

CONCLUSIONS

In-depth knowledge about causative factors, diagnosis and preventive methods of DE was apparent among only half the respondents and approaches to early diagnosis were insufficient. There would appear to be an urgent need for enhancing awareness and knowledge about DE within the Yemeni dental community.

Prevalence and risk factors for dental erosion among 11- to 14-year-old school children in South India

This cross-sectional survey was conducted to assess the prevalence and severity of dental erosion and to determine the potential risk factors for dental erosion among 11- to 14-year-old school children in South India. The total sample size for the study was 605, of which 303 school children were from private schools and 302 from public schools. A questionnaire was designed to record information about socio-demographic characteristics, oral hygiene practices, dietary habits and risk factors for dental erosion. Chi square test, bivariate analysis and Logistic regression analysis were performed to analyse the data. The children who consumed lemon several times a day (OR = 13.41, P < 0.001), and those who preferred carbonated drinks (OR = 2.80, P = 0.007) had a higher tendency to develop dental erosion. The overall prevalence of dental erosion was found to be low (8.9%). Erosion was found to be greater in posterior teeth (65.6%) than anterior teeth (34.4%). Loss of enamel only with loss of surface contour was observed in most (94.8%) of the cases. The prevalence of dental erosion was found to be low in school children. Private school children were affected more by dental erosion. Frequency of lemon consumption and consumption of carbonated drinks were identified as risk factors.

A novel self-assembled oligopeptide amphiphile for biomimetic mineralization of enamel

BACKGROUND

Researchers are looking for biomimetic mineralization of ena/mel to manage dental erosion. This study evaluated biomimetic mineralization of demineralized enamel induced by a synthetic and self-assembled oligopeptide amphiphile (OPA).

RESULTS

The results showed that the OPA self-assembled into nano-fibres in the presence of calcium ions and in neutral acidity. The OPA was alternately immersed in calcium chloride and sodium hypophosphate solutions to evaluate its property of mineralization. Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) showed nucleation and growth of amorphous calcium phosphate along the self-assembled OPA nano-fibres when it was repetitively exposed to solutions with calcium and phosphate ions. Energy dispersive spectrometry (EDS) confirmed that these nano-particles contained calcium and phosphate. Furthermore, electron diffraction pattern suggested that the nano-particles precipitated on OPA nano-fibres were comparable to amorphous calcium phosphate. Acid-etched human enamel slices were incubated at 37°C in metastable calcium phosphate solution with the OPA for biomimetic mineralization. SEM and X-ray diffraction indicated that the OPA induced the formation of hydroxyapatite crystals in organized bundles on etched enamel. TEM micrographs revealed there were 20-30 nm nano-amorphous calcium phosphate precipitates in the biomimetic mineralizing solution. The particles were found separately bound to the oligopeptide fibres. Biomimetic mineralization with or without the oligopeptide increased demineralized enamel microhardness.

CONCLUSIONS

A novel OPA was successfully fabricated, which fostered the biomimetic mineralization of demineralized enamel. It is one of the primary steps towards the design and construction of novel biomaterial for future clinical therapy of dental erosion.

Association between dental erosion and diet in Brazilian adolescents aged from 15 to 19: a population-based study

Dental erosion is a pathological condition resulting from the irreversible dissolution of the mineralized portion of the teeth, being recognized in modern society as an important cause of loss of tooth structure. The aim of this study was to assess the prevalence and its association with diet in Brazilian adolescents of Campina Grande, PB, Brazil. A population-based study was conducted on a stratified sample of 675 adolescents aged from 15 to 19 of both sexes using the index proposed by O'Sullivan. Dental examinations were performed by two calibrated dentists (kappa = 0.82). The significance level adopted was 5%. The prevalence of dental erosion was 21%, and the upper central incisors and lateral incisors were the most affected elements, with 50.5% and 40.2%, respectively. The buccal surface showed greater impairment (51.4%) and 67.8% of teeth with dental erosion had more than half of the surface of affected area. Most damage was on the enamel (93.5%). There were no statistically significant differences between the occurrence of dental erosion and gender, age, socioeconomic status, self-reported ethnicity, and diet. There was high prevalence of dental erosion in its early stages among adolescents and there were no significant differences in the frequency of the consumption of foods and beverages and the presence of dental erosion.

Dental caries and erosion status of 12-year-old Hong Kong children

Background

This study aimed to assess the dental caries and erosion status of 12-year-old Hong Kong children and study the determinants of dental caries and dental erosion of these children.

Methods

The survey was performed from 2011 to 2012 with ethics approval. Stratified random sampling was adopted to select 12-year-old children in 7 primary schools in Hong Kong. The participating parents were asked to complete a self-administered questionnaire concerning their children’s diet and oral health habits. The children were examined for caries status with WHO criteria by 3 calibrated examiners. Detection of dental erosion followed Basic Erosive Wear Examination (BEWE) criteria.

Results

A total of 704 children were recruited and 600 (316 boys, 53%) participated in the survey. There were 124 children (21%) with caries experience (DMFT > 0) and their DMFT was 0.34 ± 0.76. About half of their decay was unfilled (DT = 0.16 ± 0.52) The DMFT of girls and boys were 0.45 ± 0.89 and 0.23 ± 0.61, respectively (p = 0.001). Girls also had a higher DT (0.21 ± 0.62 compared with 0.11 ± 0.41, p = 0.013) and FT than boys (0.23 ± 0.63 compared with 0.12 ± 0.44, p = 0.016). Most children (75%) had at least some sign of erosion (BEWE > 0), but no severe erosion (BEWE = 3). Logistic regression showed girls who consumed soft drinks and took vitamin C supplements had higher caries risk. Dental erosion was more severe among the children who had caries experience and consumed fruit juice.

Conclusions

The 12-year-old Hong Kong children had low caries experience, and almost half of the decay was left untreated. Although severe erosion was not found, many children had early signs of erosion.

Association of dentine hypersensitivity with different risk factors - a cross sectional study

BACKGROUND

This study was done to assess the prevalence of Dentine hypersensitivity (DH) and its associated risk factors.

MATERIALS & METHODS

This epidemiological study was done among patients coming to dental college regarding prevalence of DH. A self structured questionnaire along with clinical examination was done for assessment. Descriptive statistics were obtained and frequency distribution was calculated using Chi square test at p value <0.05. Stepwise multiple linear regression was also done to access frequency of DH with different factors.

RESULTS

The study population was comprised of 655 participants with different age groups. Our study showed prevalence as 55% and it was more common among males. Similarly smokers and those who use hard tooth brush had more cases of DH. Step wise multiple linear regression showed that best predictor for DH was age followed by habit of smoking and type of tooth brush. Most aggravating factors were cold water (15.4%) and sweet foods (14.7%), whereas only 5% of the patients had it while brushing.

CONCLUSION

A high level of dental hypersensitivity has been in this study and more common among males. A linear finding was shown with age, smoking and type of tooth brush. How to cite this article: Vijaya V, Sanjay V, Varghese RK, Ravuri R, Agarwal A. Association of Dentine Hypersensitivity with Different Risk Factors - A Cross Sectional Study. J Int Oral Health 2013;5(6):88-92 .

Epidemiological Study to Evaluate the Prevalence of Dentine Hypersensitivity among Patients

BACKGROUND

Dentine hypersensitivity (DH) is a common finding with different prevalence rate. The aim of this study was to evaluate the prevalence of DH and associated risk factors.

MATERIALS & METHODS

This cross-sectional survey was done among patients coming to dental hospital. The diagnosis of DH was made as the result of both clinical examination and patient's response. A self-administered structured questionnaire was used to know demography profile, self-reported DH, the activating factors, preventive measures and frequency. Descriptive statistics were obtained and frequency distribution was calculated using Chi square t test at p value <0.05.

RESULTS

The total population compromised of 960 patients including 528 males and 432 females. The prevalence of dentine hypersensitivity in this sample was 42.5% and more common among male population (60.8%) and the peak age was between 30 to 39 years (39.2%). Lower anteriors were commonly involved (35.8%) and cold drinks (25.8%) are the main aggravating factor. 6.5% experience it all the time but still some do not take preventive measures.

CONCLUSION

There is high prevalence rate of DH and mainly among males. Some of the patients had it all the time but still they do not want to control the problem. How to cite this article:Rane P, Pujari S, Patel P, Gandhewar M, Madria K, Dhume S. Epidemiological Study to Evaluate the Prevalence of Dentine Hypersensitivity among Patients. J Int Oral Health 2013; 5(5):15-9.

Awareness and attitudes related to dental erosive wear among 18-yr-old adolescents in Oslo, Norway

The aim of the present study was to describe awareness and attitudes related to dental erosive wear among 18-yr-old adolescents in Oslo and to explore attitudinal differences between participants with and without the condition. All 18-yr-old subjects scheduled for their routine examination at the Public Dental Service clinics during 2008 (n = 3,206) were invited, and 1,456 agreed to participate (a response rate of 45%). The data were collected using structured questionnaires and by clinical examination of the participants. Dental erosive wear was assessed using a pictorial manual - the Visual Erosion Dental Examination scoring system - as a guide. Overall, 88% of participants had heard about dental erosive wear; however, of participants with erosive lesions only 56% were aware of, and only 47% could recall their dentist mentioning, the condition. Participants with erosive wear were more likely to have low or moderate positive attitudes towards acidic drink consumption and to be reluctant to change. In multivariate analyses controlling for gender and behavioural variables, weak or moderate positive awareness of acidic drinks remained significantly associated with higher erosion risk. This study emphasizes the importance of assessment and understanding of awareness and attitudinal aspects in relation to dental erosive wear.