Association between non-carious cervical lesions, dentin hypersensitivity and anxiety in young adults: A cross-sectional study.

Objectives: To investigate the prevalence and factors associated with dentin hypersensitivity (DH) and non-carious cervical lesions (NCCLs).

Methods: The analytical cross-sectional study included 157 participants aged between 18 and 45 years, who were clinically examined and answered a questionnaire related to their lifestyle and daily habits (diet, parafunctional habits, temporomandibular disorders, general and oral health) and the Beck Anxiety Inventory. A descriptive analysis of the prevalence of DH and NCCL was performed, both at the individual level and considering the distribution among the teeth.

Childhood early oral ageing syndrome: prevalence and association with possible aetiological factors and consequences for the vertical dimension of occlusion: protocol for a cross-sectional study.

Introduction: Childhood early oral ageing syndrome (CEOAS) is a condition involving oral abnormalities resulting from systemic diseases of different origins that are related to the current lifestyle of the paediatric population. Enamel defects associated with intrinsic and extrinsic factors promote the early loss of tooth structure at an accelerated pace, with negative impacts on function, aesthetics and quality of life. The aim of the study is to identify the prevalence of early tooth wear in childhood and its severity using the CEOAS index, which is a tool for the diagnosis of the condition and for epidemiological surveys, involving the investigation of abnormalities of the oral cavity in the paediatric population and possible factors associated with the severity of the condition.

Development and content validation of the Childhood Early Oral Aging Syndrome (CEOAS) index for the deciduous dentition: Research protocol.

Premature, non-physiological tooth wear in childhood has numerous repercussions for oral health. This is a growing problem with multifactorial causes and associated with the current lifestyle. The introduction of new concepts and indices is crucial for enhancing the understanding and management of dental conditions.

Can non-carious cervical lesions depth affect clinical response in pain intensity and remaining dentin thickness?

Non-carious Cervical Lesions (NCCL) are dental tissue defects, non-related to caries, frequently observed in the dental practice. The aim of this study was to evaluate the effects of NCCL on dentin depth and thickness and the response to dental pain by means of clinical diagnostic tests. 86 teeth from 14 patients with NCCL were assessed by: depth of NCCL, clinical tests (evaporative stimulus, to detect pain levels of dentin hypersensitivity, cold thermal test to classify pulp health, percussive stimuli to evaluate the periradicular tissues and cone beam computed tomography (tomography to evaluate remaining dentin thickness (RDT).

Powered Toothbrushes: An Opportunity for Biofilm and Gingival Inflammation Control.

The present review aimed at a broad investigation on the potential of powered as compared to manual toothbrushes in different aspects of clinical dentistry. Studies evaluating plaque and gingival inflammatory parameters were included, as well as those that investigated adverse effects. Emphasis was given separately to adults, youngsters, special-needs patients, and those under fixed orthodontic therapy.

Photobiomodulation therapy and 3% potassium nitrate gel as treatment of cervical dentin hypersensitivity: a randomized clinical trial.

Objectives: This randomized controlled trial aimed to evaluate different protocols for dentin hypersensitivity treatment with low-power lasers and desensitizing agents, and the association between low-power lasers and desensitizing agents.

Materials And Methods: Fifty-four patients (303 teeth) were randomly allocated to three groups: G1, 3% nitrate potassium gel, UltraEZ (n = 17); G2, photobiomodulation therapy (PBM) with a low-level infrared laser (n = 17), 100 mW, spot size of 0.028 cm, and dose of 1 J per point; and G3, nitrate potassium + PBM (n = 20).

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

Background: This 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 Methods: A 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.

Influence of Tip Diameter and Light Spectrum of Curing Units on the Properties of Bulk-Fill Resin Composites.

Objective:  The aim of this study was to evaluate the influence of different light-curing units (LCUs) with distinct tip diameters and light spectra for activating bulk-fill resins.

Materials And Methods:  The specimens ( = 10) were made from a conventional composite (Amaris, VOCO) and bulk-fill resins (Aura Bulk Fill, SDI; Filtek One, 3M ESPE; Tetric Bulk Fill, Ivoclar Vivadent) with two diameters, 7 or 10 mm, × 2 mm thickness. Following 24 hours of specimen preparation, the degree of conversion (DC) was evaluated using the Fourier-transform infrared unit.

The control of pain due to dentin hypersensitivity in individuals with molar-incisor hypomineralisation: a protocol for a randomised controlled clinical trial.

Introduction: Dentin hypersensitivity (DH) is defined as high sensitivity of the vital dentin when exposed to thermal, chemical or tactile stimuli. Two mechanisms are required for the occurrence of DH: (1) the dentin must be exposed and (2) the dentinal tubules must be open and connected to the pulp. Molar-incisor hypomineralisation (MIH) is a qualitative abnormality of a genetic origin that affects tooth enamel and, in most cases, is accompanied by DH.

Prevalence of noncarious cervical lesions among adults: A systematic review.

Objectives: This study aims to systematically review the literature on noncarious cervical lesions (NCCLs) and calculate an overall prevalence estimate.

Methods: The protocol of this systematic review was prepared according to PRISMA and MOOSE guidelines. The MEDLINE-PubMed and Cochrane-CENTRAL databases were searched.

Brazilian dentists' perception of dentin hypersensitivity management.

The aim of this study was to investigate how Brazilian dentists perceive and manage dentin hypersensitivity (DH) in their clinical routine. A 13-item questionnaire-based survey was developed and sent electronically to a convenience sample of dentists. The questionnaire assessed the personal and dental practice characteristics of the sample, the occurrence of DH in their daily clinical practice, and management strategies.

Development of a fiber-reinforced material for fiber posts: Evaluation of stress distribution, fracture load, and failure mode of restored roots.

Statement Of Problem: The biomechanical behavior of post-restored roots with an experimental fiber-reinforced composite resin is unknown.

Purpose: The purpose of this in vitro study was to investigate the biomechanical behavior of an experimental composite resin (3-mm short glass fiber incorporated in methacrylate matrix with filler particles) used to produce the custom post itself or to reline fiber posts.

Material And Methods: Four testing groups (n=10) were created according to the root restoration method: FG, commercially available fiber post; FG+RC, fiber post relined with conventional composite resin; FG+EXP, fiber post relined with the experimental composite resin; and EXP, a custom post made of experimental composite resin.

A long-term evaluation of experimental potassium oxalate concentrations on dentin hypersensitivity reduction: A triple-blind randomized clinical trial.

Objective: The aim of this split-mouth, triple-blind, randomized clinical trial was to evaluate the long-term clinical efficacy of experimental potassium oxalate concentration (10%) in relieving dentin hypersensitivity (DH), after a four-session application protocol.

Methods: Potassium oxalate gels with different concentrations (5 and 10%) were randomly assigned to half of the 31 patients from the sample in a split-mouth design. The desensitizers were applied following a four-session protocol, one session every 48 h.

Four-Session Protocol Effectiveness in Reducing Cervical Dentin Hypersensitivity: A 24-Week Randomized Clinical Trial.

A single-blind randomized clinical trial was conducted to evaluate the effectiveness of desensitizing agents with different action mechanisms in reducing cervical dentin hypersensitivity (CDH) after four application sessions, with 24-week follow-up. Sixty patients with CDH were selected in the study and were allocated in three groups of treatment: Desensibilize KF 2%, Clinpro XT Varnish, and Photon Lase III (100 mW, 4 J/cm-1 J/cm each point, 10 sec per point with wavelength of 808 nm). There were four application sessions performed, with a 48-h interval between each one.

Prevalence of dentin hypersensitivity: Systematic review and meta-analysis.

Objectives: The purpose of this study was to estimate the prevalence of dentin hypersensitivity in various populations.

Sources: Four electronic databases (Medline via PubMed, Cochrane Library, Wiley Online Library and Web of Science) were searched until June 2018.

Study Selection: Cross-sectional studies on the prevalence of dentin hypersensitivity were included.

Relationship between noncarious cervical lesions, cervical dentin hypersensitivity, gingival recession, and associated risk factors: A cross-sectional study.

Objectives: The aim of this study was to evaluate the risk factors associated with noncarious cervical lesions (NCCLs), cervical dentin hypersensitivity (CDH), and gingival recession (GR), besides the relationship among these conditions in a specific Brazilian sample population.

Methods: 185 patients who attended the "Ambulatory Program for Rehabilitation of Patients with Noncarious Cervical Lesions and Cervical Dentin Hypersensitivity" were evaluated, and 5180 teeth were analyzed. The subjects filled out a form and a calibrated examiner performed the clinical exams to determine the presence of NCCLs, CDH, and GR.

Clinical Performance of Root Surface Restorations.

This chapter describes the clinical performance of restorations placed in root caries lesions. The prevalence of root caries and other types of cervical lesions, caused by abfraction, erosion, and abrasion (non-carious cervical lesions) are high, mainly in the elderly; and therefore, restorative procedures are indicated. We will revise the restorative materials used to restore these types of lesions and present evidence-based findings to provide clinicians with better evidence for choosing them.

Periodontal and Restorative Treatment of Gingival Recession Associated with Non-Carious Cervical Lesions: Case Study.

The association between the presence of gingival recession and non-carious cervical lesions is a common finding in dentistry. These diseases have multifactorial etiology and the treatment should be multidisciplinary. Although traditionally the majority of professionals treat non-carious cervical lesions only with conventional restorative procedures, in most cases a combination of periodontal and restorative treatments provides the best functional and esthetic results.

Restorative material and loading type influence on the biomechanical behavior of wedge shaped cervical lesions.

Objectives: To evaluate the influence of restorative materials used on the rehabilitation of MOD cavities and loading type, on biomechanical behavior of wedge-shaped (WS) lesions in endodontically treated maxillary premolars. The investigation was conducted by 3D finite element analysis (FEA) and strain gauge test.

Materials And Methods: Six models were generated, with MOD cavities and endodontic treatment: A (MOD amalgam restoration), R (MOD composite restoration), AL (A + cervical lesion (L)), RL, ALR (A + cervical lesion restored with composite (LR)), and RLR.

Biomechanical Behavior of Extensively Restored Premolars: Cusp Deformation, Marginal Integrity, and Fracture Resistance.

Purpose: To study the biomechanical behavior of extensively restored premolars by determining the effect of the composite type, presence of cusp weakening, and compressive loading on the cusp deformation (CD), marginal integrity (MI), and fracture resistance (FR) of directly restored premolars.

Materials And Methods: Forty premolars received Class II mesio-occlusal-distal (MOD) cavities and were divided into 4 groups (n = 10) in accordance with the two study variables: composite type (conventional: Filtek Z250 XT [Z250], 3M ESPE; low shrinkage: Venus Diamond [VD], Heraeus-Kulzer) and the presence of cusp weakening (with/without). Cusp deformation upon restoration was assessed using strain gauges during the restorative procedure and thereafter when the restorations were subjected to an occlusal load of 100 N.

Biocompatibility of three bioabsorbable membranes assessed in FGH fibroblasts and human osteoblast like cells culture.

Objectives: Specific physical and chemical features of the membranes may influence the healing of periodontal tissues after guided tissue regeneration (GTR). The aim of the present investigation was to analyze the biological effects of three bioabsorbable membranes. The hypothesis is that all tested membranes present similar biological effects.

Esthetic rehabilitation with laminated ceramic veneers reinforced by lithium disilicate.

Because of their predictable results and conservation of tooth structure, ceramic veneers are indicated for the esthetic treatment of anterior teeth with anomalous positions or appearance. The objective of this case report is to highlight the steps in dental rehabilitation using ceramic veneers reinforced by lithium disilicate. In this case the patient had diastemas between the mandibular incisors.

Influence of ferrule, post system, and length on biomechanical behavior of endodontically treated anterior teeth.

Introduction: The aim of this study was to evaluate the influence of post system, length, and ferrule on biomechanical behavior of endodontically treated anterior teeth.

Methods: The investigation was conducted by using laboratory tests and 3-dimensional finite element analysis. Eighty bovine incisors were selected and divided into 8 treatment groups (n = 10) with absence of ferrule and 2.

Effects of threaded post placement on strain and stress distribution of endodontically treated teeth.

The aim of this study was to evaluate the effect of parallel and tapered threaded post placement on the strain and stress distribution of endodontically treated teeth. Fifteen bovine incisors were sectioned 15 mm from their apices, endodontically treated, and divided into three groups (n=5) according to three different threaded posts: parallel threaded post (Radix-Anker, RA); tapered threaded post (Euro-Post, EP) and tapered threaded post (Reforpost II, RII). A strain-gauge was fixed on the proximal surface perpendicular to the long root axis, 2 mm from the cervical limit.

Rapid prototyping and 3D-virtual models for operative dentistry education in Brazil.

Many dental students struggle for visual recognition when first exposed to the study of tooth cavity preparation in the operative dentistry laboratory. Rapid prototypes and virtual models of different cavity preparations were developed for the incoming first-year class of 2010 at the Dental School of Federal University of Uberlândia, Brazil, to help them to visualize the subtle differences in cavity preparations and are described in this article. Rapid prototyping techniques have been used in dental therapy, mainly for the fabrication of models to ease surgical planning in implantology, orthodontics, and maxillofacial prostheses.