Prevalence Of Non-carious Cervical Lesions Research Articles

Prevalence of Non-carious Cervical Lesions in Patients with Gingival Recession and Associated Risk Factors: A Hospital-Based Cross-Sectional Study in a Sample of Adult Egyptian Dental Patients

Prevalence of Non-carious Cervical Lesions in Patients with Gingival Recession and Associated Risk Factors: A Hospital-Based Cross-Sectional Study in a Sample of Adult Egyptian Dental Patients

Comparative Evaluation of Marginal Microleakage of a Bioactive Composite Resin Using Three Different Bonding Agents in Non-Carious Cervical Lesions– An In Vitro Study

Background and objectives: Increasing prevalence of non-carious cervical lesions makes it imperative to overcome challenges in tooth preparation, isolation and restoration. Bio-active restorative materials are relatively new concepts in dentistry having the potential to prevent secondary caries, a major cause of failure of restorations. Composite resins have the disadvantage of polymerization shrinkage leading to marginal gap formation. This study evaluated the marginal microleakage properties of Activa bio-active composite resin using three different adhesives in non- carious cervical lesions. Materials and method: Forty extracted maxillary & mandibular premolars for the study were collected. The specimens were divided into groups (n= 10). Box type class V cavities, 2mm inciso-gingivally, 3mm mesio-distally & 2mm in depth was prepared on the buccal surfaces. Group 1: Activa bio-active resin +No bonding agent, Group 2: Activa bio-active resin +Tetric N-bond, Group 3: Activa bio-active resin +Single bond Universal, Group 4: Activa bio-active resin + G Premio bond. Restorations were done and samples subjected to thermocycling. They were immersed in Rhodamine B dye solution for 24 hours. The samples were longitudinally sectioned in a bucco-lingual direction with diamond discs, examined under a stereo-microscope with 30x magnification and depth of penetration analyzed. The statistical analysis for microleakage was performed using the Kruskal Wallis test followed by the Mann Whitney U-tests with the Wilcoxon correction for pair-wise comparisons at a significance level of p < 0.05. Results: Activa bio-active resin + G Premio bond showed lesser micro-leakage compared to other groups and the difference was statistically significant. Conclusion: Activa bioactive resin with G Premio bond, 8th generation bonding agent showed lesser micro-leakage when compared with 5th and 7th generation bonding agents.

Prevalence of Non-Carious Cervical Lesions in Individuals who Undergo Orthodontic Surgery: A Cross-Sectional Study

Objective: To examine the dispersal of NCCLs (non-carious cervical lesions) by tooth type. This research also aims to explore NCCLs’ prevalence in those patients who go through orthodontic surgery and the possible factors linked with it. Study design: A cross-sectional study Place and Duration: This study was conducted at Pakistan Medical Center Hyderabad from August 2021 to August 2022. Methodology: Overall, 162 individuals were involved in this research. Data from the patients were collected before and after the orthodontic surgery. The data include age, gender, number of sessions activated, facial pattern, retreatment, compensatory treatment, and angle’s malocclusion. Lateral intraoral pictures of every patient were taken from the left, right, and front. These pictures were clicked to see whether NCCLs are present or absent in every tooth and to evaluate the dispersal of non-carious cervical lesions in the teeth of every individual. To evaluate the relationship between each variable and NCCLs, Poisson regression analysis (multivariate and bivariate) with robust variance was used. The confidence interval was at 95% and significant p-value was less than 0.05. Results: The prevalence of NCCLs before orthodontic surgery was 23.01% and the prevalence of non-carious cervical lesions after orthodontic surgery was 31.09%. The most affected teeth were premolars along with incisors, first molars, and canines. It was found after the statistical analysis that the factor that affected the prevalence ratio was age. If orthodontic surgery was performed in adulthood, NCCLs were more prevalent. Conclusion: It was concluded that the most affected teeth by NCCLs were premolars. Moreover, age seems to influence the increasing prevalence of non-carious cervical lesions in those participants who go through orthodontic surgery in their adulthood. Keywords: premolars, non-carious cervical lesions, teeth, orthodontic surgery

Prevalence and characteristics of non-carious cervical lesions at the Ouagadougou Municipal Oral Health Center, Burkina Faso

Objectives: This work sought to study the prevalence of non-carious cervical lesions (NCCLs) in a Burkinabe population consulting at the Municipal Oral Health Center of Ouagadougou. Material and Methods: This was a descriptive cross-sectional study. It was carried out between August 1, 2020, and October 31, 2020. The study population consisted of all adult patients regardless of the reason for consultation. The diagnoses of abrasion, erosion, and abfraction were based on the morphology of the clinical forms of each of these lesions as already described in the literature. Results: During the study period, 595 patients were examined and 82 of them had at least one NCCL, for an overall prevalence of 13.8%. Abrasion lesions were the encountered the most (47.4%), followed by abfractions (27.1%) and erosions diagnosed in 25.5% of cases. Conclusion: NCCLs are pathologies of the neck of the tooth that is of great concern both in terms their clinical and etiological diagnosis as well as their therapy. The prevalence reported in this study is of importance to all oral health professionals, who need to be well aware that NCCL is increasingly a major reason for seeking care.

Prevalence of non-carious cervical lesions and orthodontic treatment: a retrospective study

BackgroundThis study aimed to assess the distribution of non-carious cervical lesions (NCCLs) by tooth type, investigate the prevalence of NCCLs in patients undergoing orthodontic treatment, and identify the possible associated factors.Material and methodsA total of 160 patients were enrolled in this retrospective study. Data on the following variables were collected from pre-and post-orthodontic treatment records: age, sex, Angle’s malocclusion, facial pattern, number of activation sessions, compensatory treatment, and retreatment. Frontal, right and left lateral intraoral photographs of each patient were evaluated to identify the presence or absence of NCCLs in each tooth and assess the distribution of NCCLs in the 3840 teeth from the enrolled patients. Furthermore, patients were classified as NCCLs present, irrespective of the number of NCCLs on the teeth or NCCL absent. Bivariate and multivariate Poisson regression analyses with robust variance were used to assess the association between the NCCLs and each independent variable. Prevalence ratio and 95% confidence intervals were calculated and p < 0.05 was considered statistically significant.ResultsThe prevalence of NCCLs before and after orthodontic treatment was 22.71% and 30.91%, respectively. Premolars were the most affected teeth, followed by the first molars, canines, and incisors. After statistical analysis, age was found to be the variable factor that influenced the prevalence ratio, with NCCL being the most prevalent when orthodontic treatment was performed in adulthood.ConclusionsPremolars were most commonly affected by NCCLs. Furthermore, age seemed to contribute to the increased prevalence of NCCLs in adults undergoing orthodontic treatment.

Prevalence of non-carious cervical injuries and their associations with risk factors: integrative literature review

Objective: To determine the incidence of the main risk factors and also the prevalence of non-carious cervical lesions (NCCL) in relation to sex and age. Methodology: The literature search was conducted using the keywords and MeSH terms “Tooth Cervix”, “Non carious cervical lesions” and “Tooth Wear”, in the MEDLINE databases via PubMed and Scopus. Observational studies were included, which aimed to assess the relationship between sex, age and risk factors with cervical injuries. In addition, only studies in English, from the last five years, in their full version, were selected. Literature reviews, clinical cases, studies that did not include the main observation, studies that deviated from the topic and in other languages were excluded from the research. Results: 441 articles were identified, of which 17 were selected. There was no significant percentage difference between males and females, with percentages of 49% and 51%, respectively. Regarding the prevalence associated with the age group, a higher incidence was observed in the population over 65 years of age (36%). Regarding risk factors, gastroesophageal reflux, parafunctional habits, occlusal disorders and brushing problems were reported, but the acidic diet was the most incident in the literature (in 76.4% of the selected articles). Conclusion: The prevalence of NCCL increases with age, however it does not depend on sex, with an acidic diet being considered a risk factor.

Non-carious cervical lesions (NCCLs) and associated factors: A multilevel analysis in a cohort study in southern Brazil.

To investigate the prevalence of non-carious cervical lesions (NCCLs) and their association with individual and tooth-related factors in adults from the 1982 Pelotas Birth Cohort. Participants were interviewed and clinically examined at the age of 31. NCCL was defined as loss of dental tissue without bacterial involvement in the cervical region. Independent variables were the socioeconomic, demographic, behavioural, and clinical characteristics. Associations were tested using a multilevel Poisson regression model. Five-hundred and thirty-nine participants were clinically examined, with a 26% prevalence of NCCLs, which were more prevalent in the maxilla (56.5%) and in premolars (72.9%). In the multilevel analysis, women presented lower prevalence than men [prevalence ratio (PR) 0.59 (0.48-0.73)]; those who reported smoking at both 22 and 30 years of age had more NCCLs than those who never smoked [PR 1.65 (1.31-2.07)]; and high-frequency brushers presented higher prevalence than low-frequency brushers [PR 1.26 (1.03-1.55)]. Gingival recession increased 10 times the prevalence of NCCLs [PR 10.03 (8.15-12.35)], while the presence of periodontal pockets (≥4 mm) reduced the prevalence of NCCLs [PR 0.43 (0.28-0.66)]. NCCLs were more prevalent in males, smokers, and those with higher frequency of toothbrushing. While the presence of periodontal pockets was associated with a lower prevalence of NCCLs, gingival recession was a strong clinical indicator for the presence of NCCLs.

Non-Carious Cervical Lesions and risk factors in Brazilian athletes: A cross sectional study

Objective: This study aimed to evaluate the prevalence of Noncarious Cervical Lesions (NCCL), Cervical Dentin Hypersensitivity (CDH) and Gingival Recession (GR) and their associated risk factors in athletes. Methodology: A questionnaire was used to obtain basic information. An evaluator clinically examined all subjects. Statistical analysis was performed using Poisson multiple regression with robust variance, and the prevalence ratio and confidence intervals (95%) were calculated. Results: The final sample consisted of 264 athletes of different sports (7285 teeth). The present study found that the type of sport and weekly training time are important factors. Athlete’s ages ranged from 17 to 46 years (mean: 20.33 years). Majority of the athletes were males (90.46%). The teeth most affected by NCCL were the first upper premolars (29.35%), and the prevalence of NCCL increased with age. The prevalence of NCCL, CDH, and GR was 17.42%, 35.35%, and 59.09%, respectively. The linear regression shows that the most important risk factor(s) for NCCL was age, training hours, stress, excessive brushing force and orthodontic appliance; for CDH were age, education, type of sport, training hours and acid diet; and for GR were age, income, education, type of sport and excessive teeth brushing. Conclusion: It must be understood that the presence of all elements are factors capable of destabilizing the athlete's daily life. Athletes have risk factors that are closely related to the onset and progression of the disease. It is necessary that the dentist knows prevention and minimization measures.

The prevalence of non-carious cervical lesions (NCCLs) with or without erosive etiological factors among adults of different ages in Tokyo.

To evaluate the prevalence of non-carious cervical lesions (NCCLs) on teeth with or without erosive etiological factors across a broad range of ages of Japanese adults. The study sample consisted of a total of 1108 subjects aged 15 to 89years in Tokyo, Japan. Two examiners evaluated NCCLs and dental erosion (DE) during a full-mouth examination. Subjects were asked to complete a self-administered daily diet, habits, and health condition questionnaire. Subjects who had frequent acid consumption or gastric reflux and at least one tooth with initial enamel wear were placed in the erosion present (EP) group, and the remainder of subjects were placed in the erosion not present (EN) group. Logistic regression analyses were carried out to identify etiological factors of NCCLs associated with DE. Overall prevalence of NCCLs was 60.2%; the prevalence increased with age. There were no statistical differences in the prevalence of NCCLs between the EP and EN groups, except for the 60-69years group. Multiple logistic regression analysis showed the frequency of consumption of carbonated soft drinks, citrus juice, and acidic fruits such as oranges; tooth brushing pressure; and bruxism were associated with the presence of NCCLs. There were no statistical differences in the prevalence of NCCLs with or without erosive etiological factors except for the 60-69years group. NCCL distribution increased with age, and erosive risk factors caused by change in dietary habits might affect the incidence of NCCLs for elders. UMIN000041982.

Prevalence of non-carious cervical lesions and cervical dentinary hypersensitivity in undergraduate students

Abstract Introduction The non-carious cervical lesion (NCCL) is currently a common oral disease. Objective This observational and descriptive study aimed to assess risk factors associated with non-carious cervical lesions, cervical dentin hypersensitivity (CDH), gingival recession (GR) and the relationship between these conditions in students in the last years of undergraduate dentistry. Material and method One hundred eighty-five dentistry students from a private college in Ceará with an average of 22.7 ± 2.3 years participated by filling out a google docs form. Two calibrated examiners performed the exams to verify the presence of NCCL, CDH and RG. Result The presence of NCCL was 22.7%, GR was 48.1% and cervical dentin hypersensitivity 8.6%. The chi-square test with p &lt; 0.05% verified a correlation between the presence of NCCL and the presence of GR and CDH. 25% of students had NCCL and 14% considered themselves stressed. There was no association between the variables bruxism and stress (p=0.529), bruxism and year of graduation course (p=0.716), as well as no association between stress and year of course (p = 0.397) was observed. There were no correlations between NCCL and bruxism, muscle symptoms, parafunctional habits and temporomandibular dysfunction. 10.8% of students who reported using legal and illegal drugs had NCCL. Conclusion The NCCL, GR and CDH were correlated in the group of students in the last two years of an undergraduate dentistry course in Ceará.

Prevalência de lesões cervicais não cariosas em acadêmicos de odontologia

Objective:to evaluate the prevalence of non-carious cervical lesions (NCCLs) in Dentistry students froma private college in Northern Minas Gerais. Materials and Methods:a questionnaire on nutritional habits and oral hygiene was applied, followed by a clinical evaluation of those who had NCCLs with previously calibrated evaluators. The sample consisted of348 students, from the 4th to the 9th semesters;175 students answered the questionnaire and 17 presented NCCLs. The present work was approved by the Research Ethics Committee under number2.000.236. Results:there was no significant difference regarding the sex of the interviewees, with a higher concentration of NCCLsinthe students of the 9th semester, approximately72.73% of the total number of individuals evaluated. There was a higher concentration of injuries in individuals between 18 and 25 years old, approximately81.82% of the total sample. Conclusion:the studyreinforces that NCCLs are multifactorial. Hence, both diet and parafunctional habits can influence the involvement/worsening of injuries,which are present among studentswho are the object of this study.

Prevalence of non-carious cervical lesions among the general population of the Republic of Srpska, Bosnia and Herzegovina

As non-carious cervical lesions (NCCLs) may compromise aesthetics and function, knowledge of their aetiological covariables enhances management of clinical complaints and success of restorative treatments. The primary aim of this study was to assess the presence of NCCLs among the general population of the Republic of Srpska, Bosnia and Herzegovina and the potential association with patient-related risk factors. A prevalence study of NCCLs included 738 respondents from eight towns/municipalities. Two dental practitioners examined all respondents. NCCLs were diagnosed according to the Smith and Knight tooth wear index, measured using a Williams periodontal probe. Data regarding risk factors were obtained through a structured questionnaire. Multivariate logistic regression was used to analyse the association of risk factors and the occurrence of NCCLs. Non-carious cervical lesions were diagnosed in 384 (52%) respondents. Multivariate regression analysis showed that several variables were independently associated with the risk of developing NCCLs, including frequent consumption of acid food (P=0.001), frequent consumption of acid drinks (P=0.001), retaining drink in the mouth (P=0.001), alcohol consumption (P=0.030), bruxism (P=0.018) and gastro-oesophageal reflux (P=0.023). First mandibular premolars were the most affected teeth (left: 46.0%; right: 44.0%), followed by the second right maxillary premolars (37.3%), second left maxillary premolars (33.6%) and finally by the first right maxillary premolars (34.0%). The results of the current study suggest that NCCLs occur frequently and have a multifactorial aetiology. The lowest prevalence was recorded among individuals younger than 20years of age. As the majority of risk factors are modifiable, regular dental care could lead to the early detection of NCCLs.

Effect of age-related alterations on the biomechanics of teeth affected by non-carious cervical lesions

Objective: The prevalence of non-carious cervical lesions (NCCLs) has increased in the recent years, especially in the elderly population. The successful prevention and treatment of those lesions requires an understanding of the biomechanics of aged teeth. Considering the importance of such aspect, the impact of the age-related dentin deposition on the stress distribution of NCCLs was evaluated by means of finite element analysis. Material and Methods: A 2-dimensional model of a sound maxillary first premolar was created using CAD software. Two tooth geometries (sound, aged) and two lesion shapes (wedge, saucer) were simulated to the model. The mesh was built with 35,000 triangle and square elements of 0.1 mm in length. All tissues were considered isotropic, homogeneous and linear. Occlusal surfaces were loaded with 300 N for simulating normal chewing forces. The stress distribution was analyzed by a color scale and by the maximum principal stress at the cavosurface line angle. Results: The aged models presented lower stress concentration in the overall system in comparison to sound models. The sharp angle of wedge shaped lesions promoted higher stress concentration at the center of cavosurface angle, favoring the lesions progression. Conclusion: Considering the limitations of the current methodology, it is possible to conclude that aged tooth is a more compact structure that can better respond to stress loadings. This protective intrinsic mechanism should be considered when adopting preventive and restorative measures for NCCLs for the elderly.KeywordsAging; Finite element analysis; Non-carious; Cervical lesions.

Prevalence of Non-Carious Cervical Lesions and Their Relation to Parafunctional Habits: Original Study

The non-carious cervical lesions (NCCL) constitute a group of great complexity in the practice of dental clinic, mainly when it regards the identification of etiologic agent and treatment. In the present study, 69 dentistry academic students, with ages from 20 to 32 years, were evaluated with the aim of identify the prevalence of NCCL and your correlation with para-functional habits (alfa=0.05). NCCL were observed in 79.7% of the total group; worn facets in 89.2%; alba line in 86.5%; fesfoneada tongue in 90.5%; report of clenching of teeth in 58.0%; teeth grinding in 20.3%; biting the lip in 30.4%; biting the cheek or tongue in 23.2% and biting objects in 14.5%. No correlation between the presence of NCCL and investigated parafunctional habits were observed (Coef. Pi). However, the correlation between the increase of depth and breadth NCCL were confirmed with following factors: presence of alba line, fesfoneada tongue, biting the lip habit, biting the cheek or tongue. Besides, there was correlation between the increase of NCCL extension and the habit of biting some object (Coef. Contingency C). Based on this, the conclusion is that the NCCL prevalence was high in the investigated population, and the presence of parafunctional habits did not affect it occurrence. However, there is a strong association between the increase of NCCL depth and breadth and the presence of parafuncional habits.

Clinical features and factors associated with non-carious cervical lesions and dentin hypersensitivity.

Determining the factors associated with NCCLs and DH in populations could guide the implementation of specific preventive measures. This study evaluated the clinical features and factors associated with non-carious cervical lesions (NCCLs) and dentin hypersensitivity (DH) in a Brazilian population. The participants were 118 patients at the Dentistry Clinic of our dental school. They completed an interview to obtain personal information and determine the possible factors associated with NCCLs and DH. Clinical examination was undertaken to record the NCCLs, shape of the lesion and certain occlusal factors. DH was diagnosed by air and probe tests. Data were analysed with the multilevel Poisson regression and prevalence ratios, and the respective 95% confidence intervals were calculated. The prevalence of NCCLs and DH among patients was 67·8% and 51·7%, respectively. Of a total number of 2902 teeth examined, 9·65% had NCCLs and 5·82% were sensitive to air. The most affected teeth for both conditions were the premolars. Most of the NCCLs were wedge-shaped and located in the maxilla. The factors associated with NCCLs and DH were age and presence of premature occlusal contacts. NCCLs were also significantly associated with consumption of wine and alcoholic beverages, and DH with consumption of acidic fruits and juices. NCCLs were a common finding, with higher frequency in more advanced age groups, the maxilla and premolars. A significant association occurred between NCCLs, premature contacts and consumption of wine and alcoholic beverages. DH was associated with NCCLs, premature contacts and with the consumption of acidic fruits and juices.

Prevalence and risk factors for non-carious cervical lesions in children attending special needs schools in India.

We assessed the prevalence and risk factors for development of non-carious cervical lesions (NCCLs) in children attending special needs schools in India. The participants were 395 children aged 12-15 years with disabilities in learning, communication, physical function, and/or development. A questionnaire was designed in order to collect information on sociodemographic characteristics, oral hygiene practices, dietary habits, and risk factors for NCCLs. The chi-square test, bivariate analysis, and logistic regression analysis were used to analyze the data. Presence of NCCLs was associated with use of toothpowder or other materials for teeth cleaning, use of harder toothbrushes, use of a horizontal scrub technique for toothbrushing, consumption of a vegetarian diet, and greater consumption of lemon. The overall prevalence of NCCLs was 22.7%. Most lesions involved minimal loss of contour or defects <1 mm in depth. The prevalence of non-carious cervical lesions was slightly higher than the global average. Effective policies should be developed for oral health care among children attending special needs schools.

Effects of Cyclic Fatigue Stress‐Biocorrosion on Noncarious Cervical Lesions

Although there is a high prevalence of noncarious cervical lesions (NCCLs), the etiology of these lesions remains contentious. To evaluate the combined effects of cyclic fatigue stress and biocorrosion activity on NCCLs. Extracted premolar teeth were allocated into four groups (N = 10). Two groups were cyclically fatigue loaded (100 N; 72 cycles per minute; 9,200 cycles) and placed in either hydrochloric acid gel (pH = 0.1) or orange juice (pH = 4). The other two groups were stored in identical chemical solutions without fatigue load. The buccal-lingual width of each tooth was measured before and after testing. The depth of biocorrosion, normalized by the percentage change in buccolingual width, normalized by time (hour) was calculated. The data were analyzed using a two-way analysis of variance and Tukey's HSD multiple comparison test (α = 0.05). Mean (SD) of the depth of biocorrosion values were as follows: teeth receiving fatigue loading with hydrochloric acid gel exposure (1.003%/hour [0.063]) revealed a significantly higher depth of biocorrosion than the fatigue-loaded group with orange juice exposure (0.511%/hour [0.281]) (p < 0.01). For the groups without fatigue loading, those with hydrochloric acid gel (0.022%/hour [0.006]) had a significantly higher depth of biocorrosion than the group with orange juice (0.009%/hour [0.004]) (p < 0.01). The cyclically fatigue-loaded teeth with hydrochloric acid gel had a significantly greater depth of biocorrosion than either group without fatigue loading (p < 0.001). Cyclic fatigue stress-acidic biocorrosion had a significant effect on the depth of the NCCLs. In order to manage the destructive NCCLs lesions properly, it is essential to understand the etiology of these lesions. The present study indicated that the combined mechanisms of cyclic fatigue stress and biocorrosion could contribute to the formation of NCCLs.

Relationship between occlusal contact pattern and non-carious cervical lesions among male adults

PURPOSE: Whether or not occlusal contact patterns cause non-carious cervical lesions is controversial. The aim of this study was to clarify the relationship between occlusal contact pattern and non-carious cervical lesions in male Japanese adults. SUBJECTS AND METHODS: A total of 386 male employees were enrolled. All participants were in the age range 30–59 years, participated in a dental examination, had posterior occlusal support, and had not been treated for malocclusion or any temporomandibular disorder. All non-carious cervical lesions and fillings in the labial buccal surfaces of all teeth were recorded. Fillings were considered to be the same as non-carious cervical lesions. Information about tooth brushing habits was collected with a questionnaire. Chi-square tests and multivariate logistic regression analysis were performed. RESULTS: Fifty-eight percent of the subjects had non-carious cervical lesions. The first premolars showed the highest prevalence of non-carious cervical lesions. The presence of non-carious cervical lesions was associated with age (P < 0.001) and mediotrusive-side contact (P = 0.030), but not with laterotrusive-side contact (P = 0.073) or frequency of tooth brushing (P = 0.425), according to chi-square tests. Multiple logistic regression analysis showed that subjects with bilateral mediotrusive-side contact (adjusted odds ratio = 2.19 vs. no contact, P = 0.007) and laterotrusive-side contact in incisor-canine-premolar areas (adjusted odds ratio = 2.27 vs. incisor-canine areas, P = 0.036) were at increased risk of having non-carious cervical lesions after adjusting for age. CONCLUSIONS: Bilateral mediotrusive-side and laterotrusive-side contacts in incisor-canine-premolar areas were significantly associated with the presence of non-carious cervical lesions after adjusting for age in male adults.

Relationship between Occlusal Contact Patterns and the Prevalence of Non-carious Cervical Lesions

Relationship between Occlusal Contact Patterns and the Prevalence of Non-carious Cervical Lesions

Incidence of Noncarious Cervical Lesions and Their Relation to the Presence of Wear Facets

Noncarious cervical lesions are characterized by loss of tooth structure in the cervical area, compromising its integrity and resulting in esthetic problems for the patient. The purpose of this study was to assess noncarious cervical lesions in young patients in an attempt to establish a possible relationship to the presence of wear facets. First-year dental students of Bauru Dental School were studied to verify the prevalence of noncarious cervical lesions and their relationship to the presence of wear facets. After 3 years, the students were examined again to verify the incidence of new lesions, trying to establish a correlation to the previous existence of wear facets. Of the 1,131 teeth analyzed, 129 had noncarious cervical lesions. Twenty-nine of the 40 students had at least one tooth with one lesion. After 3 years, the incidence of new lesions was 57. Mandibular first molars (22.3%), mandibular first premolars (13.2%), mandibular second premolars (13.2%), and maxillary first molars (12.4%) showed the highest prevalence of lesions. On final analysis, 86.8% of all teeth presenting lesions showed wear facets. The identification of new lesions associated with the presence of wear facets identified during the first exam 3 years earlier was statistically significant (p < 0.01). The patterns of wear facets found in the study population examined were associated with an increased occurrence of noncarious cervical lesions. Occlusal factors, especially the presence of wear facets, should be considered in the management of noncarious cervical lesions.