Risk factors of tooth wear in permanent dentition: A scoping review.

BACKGROUND: Tooth wear (TW) prevalence is high and increasing and has important consequences on the patient's quality of life. Knowledge of risk factors is crucial to promote diagnosis, prevention strategies and timely interceptive treatment. Many studies have identified TW risk factors. OBJECTIVE: This scoping review aims to map and describe suspected available factors associated with TW in permanent dentition based on quantitative measurement. METHODS: The scoping review was conducted using the PRISMA extension of the Scoping Reviews checklist. The search was conducted in October 2022 from the Medline® (PubMed® interface) and Scopus® databases. Two independent reviewers selected and characterised the studies. RESULTS: 2702 articles were identified for assessment of titles and abstracts, and 273 articles were included in the review. The results show a need to standardise TW measurement indices and the study design. The included studies highlighted various factors, classified into nine domains: sociodemographic factors, medical history, drinking habits, eating habits, oral hygiene habits, dental factors, bruxism and temporomandibular disorders, behavioural factors, and stress. Results related to chemical TW (erosion) risk factors underline the importance of eating disorders, gastroesophageal reflux and lifestyle, particularly drinking and eating behaviours, which supports developing public health information campaigns and interventions. Besides chemical, this review identifies evidence of several mechanical TW risk factors, such as toothbrushing and bruxism; the influence of this last factor needs to be further explored. CONCLUSIONS: TW management and prevention require a multidisciplinary approach. Dentists are in the first line to detect associated diseases such as reflux or eating disorders. Consequently, practitioners' information and guideline diffusion should be promoted, and a TW risk factors checklist (the ToWeR checklist) is proposed to help diagnostic approaches.

Prevalence of dental attrition and its relationship with dental erosion and salivary function in young adults.

OBJECTIVES: The aim of this study was to estimate the prevalence of dental attrition in a young adult population and to explore associated factors. METHOD AND MATERIALS: Dental students aged 18 to 40 years old with a minimum of 24 natural teeth were invited to take part in this cross-sectional study. Their demographic information, medical history, perceived stress, frequency of dietary acid intake, and frequency of oral habits were obtained through several questionnaires. Assessment of each type of tooth wear (erosion, attrition, and abrasion) was performed according to the tooth wear evaluation system (TWES 1.0). All participants underwent salivary tests. Statistical analysis was performed by chi-squared or Mann-Whitney tests and logistic regression models. RESULTS: In total, 178 participants (88 women and 90 men) with a median age of 22 years were included and of those 74.7% (95% confidence interval [CI], 68% to 81%) had dental attrition. Univariate analysis revealed positive associations for male sex, age, body mass index, awake bruxism frequency, and erosive tooth wear with the presence of dental attrition. Multivariable logistic regression (Nagelkerke r2 = 0.31) indicated that dental attrition was associated with erosive tooth wear (adjusted odds ratio [aOR], 6.3; 95% CI, 2.8 to 14.2), body mass index (aOR, 1.3; 95% CI, 1.1-1.5), and age (aOR, 1.2; 95% CI 1.0 to 1.3). CONCLUSION: Dental attrition is present in most young adults of Catalonia. The associated factors were erosive tooth wear, body mass index, and age. Slight alterations of salivary parameters do not seem to predict dental attrition. (Quintessence Int 2023;54:168-175; doi: 10.3290/j.qi.b3622405).

Bruxism definition: Past, present, and future - What should a prosthodontist know?

STATEMENT OF PROBLEM: The definition of bruxism has evolved, and the dental profession needs to align with the terminologies adopted in the current literature of sleep and orofacial pain medicine. PURPOSE: The purpose of this review was to discuss the recent evolution of bruxism concepts and the implications for changing the definition that is currently used by the prosthodontic community. MATERIAL AND METHODS: A historical perspective on the evolution of the definition of bruxism, as well as a systematic literature review on the validity of polysomnography (PSG)-based criteria for sleep bruxism diagnosis to detect the presence of clinical consequences, is presented. Selected articles were read in a structured Population, Intervention, Comparison, Outcome (PICO) format to answer the question "If a target population with conditions such as tooth wear, dental implant complications, and temporomandibular disorders (P) is diagnosed with sleep bruxism by means of PSG (I) and compared with a population of nonbruxers (C), is the occurrence of the condition under investigation (that is, the possible pathologic consequences of sleep bruxism) be different between the 2 groups (O)?" RESULTS: Eight studies were eligible for the review, 6 of which assessed the relationship between PSG-diagnosed sleep bruxism and temporomandibular disorder pain, while the other 2 articles evaluated the predictive value of tooth wear for ongoing PSG-diagnosed sleep bruxism and the potential role of sleep bruxism in a population of patients with failed dental implants. Findings were contradictory and not supportive of a clear-cut relationship between sleep bruxism assessed based on available PSG criteria and any clinical consequence. The literature providing definitions of bruxism as a motor behavior and not pathology has been discussed. CONCLUSIONS: The bruxism construct has shifted from pathology to motor activity with possibly even physiological or protective relevance. An expert panel including professionals from different medical fields published 2 consecutive articles focusing on the definition of bruxism, as well as an overview article presenting the ongoing work to prepare a Standardized Tool for the Assessment of Bruxism (STAB) to reflect the current bruxism paradigm shift from pathology to behavior (that is, muscle activity). As such, dental practitioners working in the field of restorative dentistry and prosthodontics are encouraged to appraise this evolution.

Lesiones dentales no cariosas: etiología y diagnóstico clínico. Revisión de literatura / Non-carious dental lesions: etiology and clinical diagnosis. Literatura reviews

Las lesiones dentales no cariosas comprenden un conjunto de procesos que se caracterizan por la pérdida o el desgaste patológico de los tejidos duros del diente, como ser el esmalte y la dentina. En la etapa inicial es difícil el diagnóstico, cuando la lesión va en aumento y si no es tratada a tiempo ni se modifican los factores de riesgo pueden llegar afectar de manera progresiva la pulpa dental. Estas lesiones han aumentado en los últimos años, debido al mayor tiempo de dientes en boca, acompañado de hábitos parafuncionales y dietas altamente acidas, a esto se le agrega el estrés que también provoca perdida de estructura dental. Por lo que no toda perdida de tejido mineralizado de los diente es provocada por una carga bacteriana. Estas lesionesno cariosas difieren en su etiología, se debe ser muy minucioso en su evaluación clínica y descripción, ya que muchas características clínicas pueden generar un diagnóstico erróneo y por ende un tratamiento no predecible, se debe tomar en consideración la existencia de combinaciones entre lesiones. Objetivo: Conocer la etiología y características clínicas propias de cada lesión, para poder realizar un diagnóstico oportuno y seguro. La revisión se realizó por medio de una búsqueda en internet en los buscadores de Hinari, Science Direct, Google académico, revisando artículos originales y revisiones bibliográficas entre los años de 2014-2019. Conclusiones: Las lesiones dentales no cariosas tienen etiologías multi factoriales, características clínicas diferenciales y puede haber una combinación de varias patologías...(AU)

Atrición dental severa y sus factores asociados: un estudio de casos y controles / Severe dental attrition and its associated factors: a case-control study

BACKGROUND: Severe attrition is a type of dental wear caused by friction of tooth surfaces with each other. Although it is a frequent condition, it is not known what are the factors associated with its appearance. Objective: To relate factors such as: age, sex, origin, number of residual teeth, salivary pH and bruxism, with severe dental attrition. Design: cases and controls Patients: a total of 237 patients, 79 cases, with dental attrition grades 2, 3 and 4 according to the Smith and Knight index and 158 controls, with attrition grades 0 and 1. A clinical and photographic analysis was performed to determine the relationship between Dental attrition and factors such as age, sex, origin, number of residual teeth, salivary pH and bruxism. RESULTS: After a bivariate analysis, it was observed that patients older than 25 years (OR = 2.47 CI = 1.41 - 4.35 X2 = 10.21 p = 0.001), with less than 20 residual teeth in the mouth (OR = 4.95 CI = 1.47 - 16.62 X2 = 7.97 p = 0.004) and with bruxism (OR = 2.64 CI = 1.45 - 4.81 X2 = 10.49 p = 0.001), Are more likely to have severe dental attrition. After a binary logistic regression, the statistically significant relationship of these factors with severe dental attrition was confirmed. Conclusions: Severe dental attrition has a statistically significant relationship with age, number of residual teeth in the mouth and bruxism.

Antecedentes: la atrición severa es un tipo de desgaste dental causado por fricción de superficies dentarias entre sí. A pesar de ser una condición frecuente, no se conoce cuáles son los factores asociados con su aparición. Objetivo: Relacionar factores como: edad, sexo, procedencia, número de dientes residuales, pH salival y bruxismo, con la atrición dental severa. Diseño: casos y controles Pacientes: un total de 237 pacientes, 79 casos, con atrición dental grados 2, 3 y 4 según el índice de Smith y Knight y 158 controles, con atrición grados 0 y 1. Se realizó un análisis clínico y fotográfico para determinar la relación entre la atrición dental y factores como edad, sexo, procedencia, número de dientes residuales, pH salival y bruxismo. Resultados: Luego de realizar un análisis bivariado se evidenció que los pacientes con 25 años y más (OR= 2,47 IC= 1,41 ­ 4,35 X2= 10,21 p=0,001), con menos de 20 dientes residuales en boca (OR= 4,95 IC= 1,47 ­ 16,62 X2= 7,97 p=0,004) y con bruxismo (OR= 2,64 IC= 1,45 ­ 4,81 X2= 10,49 p=0,001), tienen más probabilidades de presentar atrición dental severa. Luego de una regresión logística binaria se confirmó la relación estadísticamente significativa de dichos factores con la atrición dental severa. Conclusiones: la atrición dental severa tiene una relación estadísticamente significativa con la edad, el número de dientes residuales en boca y el bruxismo.

Oral tori are associated with local mechanical and systemic factors: a case-control study.

PURPOSE: To estimate if various dental factors, medications, and medical conditions are associated with an increased risk for the presence of oral tori. MATERIALS AND METHODS: Using a case-control study design, the investigators identified and adjudicated a sample of cases with torus palatinus (TP) and/or torus mandibularis (TM) during a 1.5-year period. The medical records were abstracted and data on dental factors, temporomandibular dysfunction (TMD), medications, and medical conditions were recorded. Risk estimates were calculated as adjusted odds ratios (AORs) with 95% confidence intervals (CIs) using conditional logistic regression analyses, and the P value was set at .05. RESULTS: The sample was composed of 66 subjects with TM, 34 subjects with TP, and 100 control subjects from the same database. Any form of oral torus (TP and/or TM) was associated significantly with TMD (AOR, 10.51; 95% CI, 4.46 to 24.78; P<.01) and tooth attrition (AOR, 5.22; 95% CI, 2.32 to 11.77; P<.01). TP was associated significantly with TMD (AOR, 4.14; 95% CI, 1.21 to 14.21; P<.05), tooth attrition (AOR, 38.18; 95% CI, 7.20 to 202.41; P<.01), and treated hypertension (AOR, 6.64; 95% CI, 1.31 to 33.57; P<.05). TM was associated significantly with TMD (AOR, 5.77; 95% CI, 2.38 to 13.98; P<.01), tooth attrition (AOR, 6.69; 95% CI, 2.78 to 16.14; P<.01), and a penicillin allergy (AOR, 4.45; 95% CI, 1.05 to 18.83; P<.05). CONCLUSIONS: This study provides clinical evidence showing significant associations between oral tori and various dental factors, medications, and medical conditions. These findings add to the list of environmental factors believed to contribute to the formation of oral tori.

Decision-making in the management of the patient with dental erosion.

The clinical signs of dental erosion are initially subtle; yet they often progress because the patient remains asymptomatic, unaware, and uninformed. Erosion typically works synergistically with abrasion and attrition to cause loss of tooth structure, making diagnosis and management complex. The purpose of this article is to outline clinical examples of patients with dental erosion that highlight the strategy of early identification, patient education, and conservative restorative management.

Prevalence and association of headaches, temporomandibular joint disorders, and occlusal interferences.

STATEMENT OF PROBLEM: Although an interaction of malocclusion, parafunction, and temporomandibular joint disorders (TMD) can be inferred from the experience of daily practice, scientific evidence to corroborate this hypothesis does not exist. However, there are indications that TMD and headaches may be intertwined. PURPOSE: The purpose of this study was to identify the presence or absence of an association of occlusal interferences, parafunction, TMD, or physiologic, muscular, or prosthodontic factors with the occurrence of headache. MATERIAL AND METHODS: In a private practice population of 1031 subjects (436 men and 595 women, mean age 49.6 years) the demographic parameters, headache and general pain history, habits and general personal information were recorded. Clinical examination for dental, muscular, and temporomandibular joint pathology was accomplished. Data were statistically analyzed using the Mann-Whitney U, Kruskal-Wallis, and Chi-Square tests (α = .05). A multinomial logistic regression analysis was performed with respect to confounding variables. RESULTS: Headache affliction was found to affect women more frequently than men (1.7:1). Students and non academics were more prone to suffer from headache. Parafunction (P=.001), TMD (P=.001) and gross differences between centric occlusion and maximum intercuspation of more than a 3 mm visible track marked with 8 µm articulation foil (P=.001) significantly influenced the presence of headache. Headache intensity and frequency decreased with age. While tension-type headache was most frequently diagnosed, the parameters studied were not significantly associated with one certain headache diagnosis more frequently than others. CONCLUSIONS: Stomatognathic factors of TMD, parafunction, and gross differences between centric occlusion and maximum intercuspation of more than 3 mm are associated with headache. These findings should be interpreted with caution due to the cross-sectional nature of this study.

Innovative advanced occlusion planning with superimposed CT and optical scans.

In order to increase the likelihood of a successful treatment plan outcome, it is critical to be able to effectively view the patient's underlying bony skeletal relationship of his or her TMJ. An innovative approach suggested to achieve this is to use the CT scan, optical scan, and Kois deprogrammer. Once the vertical dimension has been increased, the novelty of this approach is the ability to superimpose both scans along with the Kois deprogrammer and, using computer software, evaluate the TMJ position in three dimensions. This case presentation describes how TMJ CT scan evaluation is used in planning a complex rehabilitation case, given that the occlusion structures can be visualized independently and interactively.

Cemental tear: clinical characteristics and its predisposing factors.

INTRODUCTION: Cemental tears often show characteristics mimicking a periapical or periodontal lesion. This leads to difficulty in the early diagnosis of cemental tears. METHODS: In this multicenter study, 71 teeth with cemental tears being confirmed by direct inspection or histological examination were included. For each case, demographic data, dental history, clinical and radiographic findings, and the results of exploratory surgery were recorded and analyzed. RESULTS: Maxillary or mandibular incisors (76.1%) were most frequently affected by cemental tears. Univariate analysis of predisposing factors found that teeth with cemental tears occurred more commonly in men (77.5%) and patients older than 60 years of age (73.2%). Analysis of clinical characteristics showed that teeth with cemental tears were prone to have abscess formation (66.2%), a deep pocket >6 mm (73.2%), positive vitality test (65.3%), healthy antagonist teeth (84.3%), and moderate to severe attrition (77.9%). About 56.3% of cemental tears could be detected on preoperative radiographs. Further analysis of radiographic findings showed that teeth with cemental tears were more likely to have periodontal bone destruction (85.9%) or periapical bone destruction (64.8%). CONCLUSIONS: Endodontists and dentists may avoid misdiagnosis and unnecessary treatment of teeth with cemental tears if they can properly evaluate the radiographs and pulp vitality of teeth as well as know the predisposing factors and clinical characteristics of teeth with cemental tears in advance.

Full mouth rehabilitation of severely attrited dentition. A case report.

Tooth wear and its management should be accurately diagnosed and planned. In some patients, long-term monitoring is essential before embarking on any irreversible, interventive treatment. Patients with excessive wear often require extensive restorative treatment. This article describes the case of one such patient who had severe tooth wear, resulting in reduced vertical dimension.

Recognition and management of odontogenic referred pain.

There are times when referred pain makes it difficult to locate the source of odontogenic pain. In those situations, additional evaluation or referral is needed to determine the cause of the chief complaint. This article presents two cases that illustrate the difficulty and frustrations of referred pain for both patients and dentists. After a thorough evaluation and diagnosis, the true sources of the patients' chief complaints were identified and treated, leading to complete resolution of their symptoms. These cases emphasize the importance of listening to the patient, obtaining a detailed dental history, collecting comprehensive diagnostic data, and developing an accurate diagnosis before initiating treatment. When a definitive diagnosis cannot be determined, referral may be necessary to provide the best treatment possible.

Fixed rehabilitation of an ACP PDI class III patient with amelogenesis imperfecta.

This clinical report describes the oral rehabilitation of a 19-year-old woman diagnosed with hypoplastic-type amelogenesis imperfecta (AI). She presented with discolored and mutilated teeth, missing teeth, anterior open bite, and posterior short crowns. She was classified as an American College of Prosthodontists Prosthodontic Diagnostic Index (ACP PDI) class III patient. The aim of treatment was to restore esthetics and improve masticatory function. The patient's esthetic and functional expectations were successfully attained with porcelain laminate veneers and all-ceramic and metal-ceramic restorations after extensive crown lengthening. The patient was regularly recalled during the postoperative period. Loss of retention of one all-ceramic crown and minimal recession of the gingiva of one laminate veneer were noted at 4-year recall.

An analysis of the etiological and predisposing factors related to dentin hypersensitivity.

AIM: To determine the prevalence of different etiological factors of dentin hypersensitivity in patients and to provide information on their association with dentin hypersensitivity. METHODS AND MATERIALS: Twenty-nine patients (17 male, 12 female) suffering from pain of dentin hypersensitivity were recruited to participate in the study. A relevant history was taken and dentin hypersensitivity confirmed by using air-blast and tactile stimuli. RESULTS: All patients were right-handed. The left side of the mouth showed a preponderance of gingival recession, abrasion, abfraction, and erosion while more teeth on the right side showed attrition. Gingival recession and attrition were common among the molars, abrasions among the molars and premolars, abfraction among the premolars, while erosive lesions were predominantly found among the incisors. A total of 911 teeth were examined in the 29 subjects presenting with dentin hypersensitivity. The following conditions were found to be associated with the dentin hypersensitivity: 43 of 117 teeth (36.8%) with gingival recession; 41 of 99 teeth (41.4%) with attrition; 40 of 67 teeth (59.7%) with abrasion; 16 of 25 teeth (64%) with abfraction; and 32 teeth had erosive lesions all associated with hypersensitivity. CONCLUSION: Gingival recessions followed by attrition were the most commonly found etiological factors leading to dentin hypersensitivity. Erosive lesions were mostly associated with dentin hypersensitivity. A statistically significant relationship exists between dentin hypersensitivity, tooth wear lesions, and gingival recession. CLINICAL SIGNIFICANCE: This study provides clinical evidence supporting the notion of dentin hypersensitivity being a tooth wear phenomenon. Therefore, successful preventive and management strategies for sufferers of dentin hypersensitivity must take into consideration causal factors for tooth wear and gingival recession.

[Short-term and long-term effects of occlusal rehabilitation on the co-contractration patterns of the electromyography of masticatory muscles].

OBJECTIVE: To investigate the short-term and long-term effects of occlusal rehabilitation on the co-contractration patterns of masticatory muscles of patients with extensive tooth wear. METHODS: Twenty-nine patients with severe tooth wear were selected and conducted with occlusal rehabilitation. The surface electromyography (EMG) of masseter (MM), anterior temporalis (TA) and posterior temporalis (TP) at rest position, during clenching and chewing were separately recorded in the stage of pre-treatment, 1 month after temporary restoration, 1 month after permanent restoration and long-term observation (mean 3.5 years). The Asymmetry Indexes (AI) of bilateral muscles, Activity Indexes of MM/TA, MM/TP and TA/TP were compared in each stage. RESULTS: (1) After occlusal rehabilitation, all the AIs of bilateral MM, TA and TP at rest position, during clenching and chewing showed obvious decrements. (2) In every stage of occlusal rehabilitation, all of the Activity Indexes of MM/TA at rest position, during clenching and chewing had no obvious changes. (3) The Activity Indexes of MM/TP and TA/TP during clenching and chewing significantly increased after occlusal rehabilitation. CONCLUSION: The treatment of occlusal rehabilitation can significantly improve the bilateral symmetry of masticatory muscles in patients with extensive tooth wear, and also change the coordinated EMG activity of different masticatory muscles.