Over 14-year survival of pressed e.max lithium disilicate glass-ceramic complete and partial coverage restorations in patients with severe wear: A prospective clinical study.

Statement Of Problem: Long-term clinical data are lacking on the comparative survival of adhesively luted lithium disilicate glass-ceramic complete and partial coverage restorations in patients with severe wear and the effect that different clinical variables have on their survival.

Purpose: The purpose of this study was to examine the 14-year survival of pressed e.max lithium disilicate glass-ceramic complete and partial coverage restorations in patients with severe wear and to evaluate associated clinical parameters.

Developing diagnostic criteria for tooth wear, a preliminary beta version based on expert opinion, and a narrative literature review.

Background: Tooth wear is a multifactorial condition, leading to the irreversible loss of dental hard tissues. The availability of an unambiguous, universally applicable assessment protocol remains lacking.

Objectives: The goal of the authors is to develop a set of diagnostic criteria for the assessment of tooth wear (DC-TW).

Incidence of endodontic therapy after complete or partial coverage glass-ceramic restorations with a follow-up time of over 30 years: A prospective clinical study.

Statement Of Problem: Long-term clinical data are lacking on the comparison of the incidence of endodontic therapy in adhesively luted complete and partial coverage glass-ceramic restorations, as well as on the effect of technique and clinical variables.

Purpose: The purpose of this prospective clinical study was to assess the long-term incidence of teeth requiring endodontic therapy after receiving either complete or partial coverage glass-ceramic restorations.

Material And Methods: Participants requiring single anterior complete, posterior complete, or posterior partial (inlay or onlay) coverage restoration, or a combination of these on a vital tooth were recruited from a clinical private practice.

Evaluation of dental practitioner habits with occlusal assessment and the clinical application of practical techniques in occlusion, amongst a cohort of participants based in the UK, South Africa, Malta and Malaysia.

Background: Currently, there is a lack of data relating to dental practitioners' habits with clinical occlusal assessment and the application of practical techniques in occlusion.

Objectives: The aim of this study was to investigate habits with clinical occlusal assessment and the practical application of established concepts in occlusion amongst a cohort of international dentists.

Methods: A piloted questionnaire with 20 statements was distributed by 5 recruiters.

Editorial - Delivering Better Oral Health 2021 - What's new and where next?

Delivering Better Oral Health (DBOH) was fi rst published in 2007 (Department of Health et al., 2007) at the request of the Department of Health to the British Association of Community Dentistry (BASCD). It was led by Dr Sue Gregory, who was at that time President of BASCD; and, thereafter, appointed Deputy Chief Dental Officer for England.

Superimposition of sequential scans to measure erosion on unpolished and curved human enamel.

Objectives: To determine if superimposition of sequential scans can discriminate between different fluorides at step heights less than 5 μm on natural human enamel surfaces.

Materials And Methods: Natural, unpolished, human enamel specimens (n = 60) were randomly assigned to one of three pre-treatment toothpaste slurries with a calcium silicate/fluoride, fluoride-only and a control. Baseline and post treatment scans, from a non-contacting profilometer with a 0.

Clinical performance of direct composite resin restorations in a full mouth rehabilitation for patients with severe tooth wear: 5.5-year results.

Objectives: To evaluate the 5.5-year performance of direct resin composite restorations, prescribed for patients with severe tooth wear, requiring full-mouth rehabilitation.

Methods: A convenience sample of 34 patients were recruited to a prospective trial between December 2010 and June 2013.

The effect of pre-treatment levels of tooth wear and the applied increase in the vertical dimension of occlusion (VDO) on the survival of direct resin composite restorations.

Objectives: To investigate the effects of the level of pre-treatment tooth wear and increasing the VDO on the performance of direct resin composite restorations for the rehabilitation of pathological tooth wear.

Methods: Full-mouth (pre-treatment) grading was performed on digital greyscale scan records for 34 participants (35.3 ± 8.

Evidence for Proline Utilization by Oral Bacterial Biofilms Grown in Saliva.

Within the mouth bacteria are starved of saccharides as their main nutrient source between meals and it is unclear what drives their metabolism. Previously oral biofilms grown in saliva have shown proteolytic degradation of salivary proteins and increased extracellular proline. Although arginine and glucose have been shown before to have an effect on oral biofilm growth and activity, there is limited evidence for proline.

A comparative evaluation between the reliability of gypsum casts and digital greyscale intra-oral scans for the scoring of tooth wear using the Tooth Wear Evaluation System (TWES).

Background: The Tooth Wear Evaluation System (TWES) is a type of tooth wear index. To date, there is the lack of data comparing the reliability of the application of this index on gypsum cast records and digital greyscale intra-oral scan records.

Objectives: A comparative evaluation between the use of gypsum cast records and digital greyscale intra-oral scan records with the reliability of tooth wear scoring using the TWES amongst a group of patients with tooth wear.

10.9-year survival of pressed acid etched monolithic e.max lithium disilicate glass-ceramic partial coverage restorations: Performance and outcomes as a function of tooth position, age, sex, and the type of partial coverage restoration (inlay or onlay).

Statement Of Problem: Long-term clinical data on the survival of pressed lithium disilicate glass-ceramic when used with partial coverage restorations and the effect that different technical and clinical variables have on survival are sparse.

Purpose: The purpose of this clinical study was to determine the 10.9-year survival of pressed lithium disilicate glass-ceramic partial coverage restorations and associated clinical parameters on outcomes.

The impact of e-training on tooth wear assessments using the BEWE.

Objective: To investigate the impact of an e-training resource with the consistency of tooth wear scoring using the Basic Erosive Wear Examination (BEWE).

Methods: Gold standard (GS) BEWE scores were attained from a trained examiner using the photographic and dental cast records for three conveniently selected cases representing low, medium and severe tooth wear. Four successive cohorts of first year post-graduate students, (n = 76, mean age, 35.

An investigation into the impact of tooth wear on the oral health related quality of life amongst adult dental patients in the United Kingdom, Malta and Australia.

Objective: To investigate the relationship between levels of tooth wear scored using the Basic Erosive Wear Examination (BEWE) and the impact on the quality of life of adult dental patients.

Methods: BEWE assessments were performed on 319 new dentate adult patients attending the practices of 5 trained recruiters based in primary care in Malta (120), Australia (118) or the UK (81). Oral impacts on the quality of life were measured using a shortened form of the Oral Health Impact Profile (OHIP-26).

Effect of indenter material on reliability of all-ceramic crowns.

Objectives: Controversy exists about whether the elastic modulus (E) mismatch between the loading indenter and ceramic materials influences fatigue testing results. The research hypotheses were that for porcelain veneered Y-TZP crowns 1) A low modulus Steatite indenter (SB) leads to higher fatigue reliability compared to a high modulus tungsten carbide indenter (WC); 2) Different surface damage patterns are expected between low and high modulus indenters after sliding contact fatigue testing. All ceramic crowns will exhibit similar step-stress accelerated life testing (SSALT) contact fatigue reliability (hypothesis 1) and failure characteristics (hypothesis 2) when using high stiffness tungsten carbide (WC, E = 600 GPa) vs.

A study to investigate habits with tooth wear assessments among UK and non-UK dental practitioners.

Aim To assess the habits of tooth wear risk assessment and charting using a tooth wear index, by UK and non-UK dental practitioners.Design A questionnaire-based evaluation.Methods Three hundred and two completed questionnaires were returned and the outcomes analysed using descriptives, Chi-squared test and Fisher's exact test in SPSS.

Can socioeconomic and psychosocial factors predict the duration of orthodontic treatment?

Introduction And Objectives: Very little is known about the role of socioeconomic and psychosocial factors in predicting orthodontic treatment duration. Thus, this study aimed to test whether socioeconomic position (SEP) and psychosocial factors, namely, family environment and resiliency can predict orthodontic treatment duration.

Methods: Data were analysed from a hospital-based, prospective, longitudinal study that recruited 145 consecutively selected 12- to 16-year-old male and female adolescents.

Validation of an Oral Disease Severity Score (ODSS) tool for use in oral mucous membrane pemphigoid.

Background: Mucous membrane pemphigoid (MMP) is a rare autoimmune bullous disease predominantly affecting the oral mucosa. Optimal management relies upon thorough clinical assessment and documentation at each visit.

Objectives: The primary aim of this study was to validate the Oral Disease Severity Score (ODSS) for the assessment of oral involvement in MMP.

Mixed aerobic-anaerobic incubation conditions induce proteolytic activity from in vitro salivary biofilms.

Oral biofilms have not been studied using both metabolome and protein profiling concurrently. Bacteria produce proteases that lead to degradation of functional salivary proteins. The novel protocol described here allows for complete characterisation of  oral biofilms, including proteolytic, metabolic, and microbiome analysis.

Electronic primary dental care records in research: A case study of validation and quality assurance strategies.

Background: In dentistry, the use of electronic patient records for research is underexplored. The aim of this paper is to describe a case study process of obtaining research data (sociodemographic, clinical and workforce) from electronic primary care dental records, and outlining data cleaning and validation strategies. This study was undertaken at the University of Portsmouth Dental Academy (UPDA), which is a centre of education, training and provision of state funded services (National Health Services).

The optimal oral biopsy site for diagnosis of mucous membrane pemphigoid and pemphigus vulgaris.

Background: Accepted 'standard practice' for the diagnosis of immunobullous disease is a perilesional sample for direct immunofluorescence (DIF).

Objectives: To compare diagnostic outcomes of a normal buccal punch biopsy (NBPB) with a perilesional biopsy (PLB) for mucous membrane pemphigoid (MMP) and pemphigus vulgaris (PV).

Methods: A retrospective analysis of 251 DIF-positive patients with MMP and 77 DIF-positive patients with PV was undertaken.

Detection threshold of non-contacting laser profilometry and influence of thermal variation on characterisation of early surface form and textural changes in natural human enamel.

Objectives: To determine the detection threshold of non-contacting laser profilometry (NCLP) measuring surface form and surface roughness change in natural human enamel in vitro, characterise how ambient scanning thermal variation affects NCLP measurement, and calculate bulk enamel loss in natural human enamel.

Methods: NCLP repeatability and reproducibility accuracy was determined by consecutively scanning natural human enamel samples with/without sample repositioning. Ambient thermal variation and NCLP sensor displacement over short (30 s), medium (20 min), and long (2 h) scanning periods were evaluated for their standard deviation.