Cup-Shaped Tooth Wear Defects: More than Erosive Challenges?

Background/aim: The underlying mechanism of the development of cups and grooves on occlusal tooth surfaces is still unclear. The aim of this study was to evaluate factors contributing to in vitro cup formation, in order to elucidate the clinical process.

Methods: A total of 48 extracted human molar teeth were exposed to acidic aqueous solutions at pH of 4.

Temporomandibular Disorders: "Occlusion" Matters!

By analogy with the journal's title Pain Research and Management, this review describes TMD Research and Management. More specific are the (1) research aspects of "occlusion," still one of the most controversial topics in TMD, and (2) as much as possible evidence-based management aspects of "TMD" for the dental practitioner. .

Mimicking and Measuring Occlusal Erosive Tooth Wear with the "Rub&Roll" and Non-contact Profilometry.

Chewing, drinking, and occasional tooth grinding will result in physiological tooth wear during a lifetime. Extreme challenges, such as bruxism or habitual chewing on foreign objects, may lead to excessive wear. Recently, the role of erosion in accelerating mechanical tooth wear has been recognized, but the interplay between chemical and mechanical wear processes has not been extensively studied.

A new in situ model to study erosive enamel wear, a clinical pilot study.

Objectives: To develop an in situ model for erosive wear research which allows for more clinically relevant exposure parameters than other in situ models and to show tooth site-specific erosive wear effect of an acid challenge of orange juice on enamel.

Methods: This pilot study included 6 edentulous volunteers wearing full dentures with 13 embedded enamel samples The study consisted of two control runs: habitual diet only for 30days, and two experimental runs: habitual diet plus 125ml orange juice four times per day (consumed over 4m). In the first experimental run subjects were instructed to take the drink in their mouth and promptly swallow it.

The influence of different restorative materials on secondary caries development in situ.

Objectives: The effect of direct restorative materials on caries lesion formation was investigated with an 8-week in situ study with split-mouth design, testing the hypothesis that no difference in mineral loss next to a restoration would be found between different composite-based-materials and amalgam.

Methods: Six groups (n=18) of restored dentine samples were prepared using amalgam, a microhybrid, a nanohybrid and a silorane composite. The composites were adhesively bonded with systems with or without an antibacterial monomer (Clearfil-SE-Protect, Clearfil-SE-bond, respectively), except for the silorane group (Silorane-System-Adhesive).

Patients' priorities in assessing organisational aspects of a general dental practice.

Objectives: To explore which organisational aspects are considered most important by patients when assessing a general dental practice, and which patients' characteristics influence their views on these aspects by a paper questionnaire.

Participants: The questionnaire was handed out to a sample of 5,000 patients in the Netherlands.

Results: The response rate was 63%.

Views of patients and general dental practitioners on the organizational aspects of a general dental practice.

Objective: To examine the views of patients and general dental practitioners (GDPs) on the organizational aspects of a general dental practice and to see whether their views differ.

Background: Health care has increasingly centred on the patient over the last two decades, and the patients' opinions have been taken more seriously. Although in other health-care sectors research on organizational aspects has been performed, research in dental care is lacking on this subject.

The estimation of patients' views on organizational aspects of a general dental practice by general dental practitioners: a survey study.

Background: Considering the changes in dental healthcare, such as the increasing assertiveness of patients, the introduction of new dental professionals, and regulated competition, it becomes more important that general dental practitioners (GDPs) take patients' views into account. The aim of the study was to compare patients' views on organizational aspects of general dental practices with those of GDPs and with GDPs' estimation of patients' views.

Methods: In a survey study, patients and GDPs provided their views on organizational aspects of a general dental practice.

Factors associated with the incidence of erosive wear in upper incisors and lower first molars: a multifactorial approach.

Objectives: The aim was to investigate associations between factors and the incidence of erosive wear in lower first molars and upper incisors, and to investigate whether these associations differ between these locations.

Methods: The study sample of this 3-year longitudinal study consisted of 572 children (mean age 11.9 years, SD=0.

Dynamics of tooth erosion in adolescents: a 3-year longitudinal study.

Objectives: The aim of the present study was to estimate the prevalence, incidence and progression of tooth erosion on both mouth and tooth level over a 3-year period in a sample of adolescents. The study also aimed to investigate age, gender and socio-economic influences.

Methods: Tooth erosion was recorded three times with 1.

The effect of fluoride gel on incipient carious lesions in a low-caries child population.

Objectives: Secondary analyses were performed to study the cariostatic efficacy of semi-annual professional fluoride gel application on incipient carious lesions in low-caries children initially aged 9.5-11.5 years.

Effect of 40% chlorhexidine varnish on mutans streptococci counts in pits and fissures of permanent first molars.

Objectives: This study aimed to test the following hypotheses: (1) a carry-over effect of EC40 does not occur in a split-mouth model, (2) two consecutive applications of EC40 varnish with an interval of 3 months per year has a better inhibiting effect on mutans streptococci in pit and fissure plaque of permanent first molars of 6-7-year olds than a repeated application at each 6 months and (3) EC40 exerts an inhibiting effect on mutans streptococci for at least a 6-month duration.

Methods: Using a split-mouth design, test molars received EC40 on fissures and pits and control molars remained without treatment. One group of test molars received EC40 at baseline, 6, 12 and 18 months and another group at baseline, 3, 12 and 15 months.

Chlorhexidine varnish for preventing dental caries in children, adolescents and young adults: a systematic review.

This systematic review aimed to determine the caries-inhibiting effect of chlorhexidine (CHX) varnishes on the permanent dentition of children, adolescents and young adults, and to explore two possibly related factors, namely application frequency and the time between evaluation and the last application. The literature search identified 14 publications of randomized controlled trials or controlled clinical trials where the effect of CHX varnish was compared with placebo controls or controls that received no preventive treatment. To obtain uniform outcome effects, the prevented fraction and 95% confidence intervals of caries increment were calculated.

Categorisation of dental care provided in the Netherlands.

Objective: To describe the dental care provided in the Netherlands and investigate to what extent variations can be explained in accordance with certain general characteristics of patients.

Method: Besides the more usual classification of treatment into groups of dental procedures, in this study it is done using constructed categorisation of dental care based on characteristics such as 'preventive', 'curative', 'new', 'time-consuming', 'complicated' and 'lucrative' treatment. The data were collected from various groups of dentists.

Patient orientation and professional orientation of Dutch dentists.

By providing dental health care, dentists dedicate themselves to the preservation and/or improvement of oral health in their patients. By adequately carrying out this care providers' role, dentists will gain recognition, esteem and respect from both patients and colleagues. This analysis aims to assess the patient and professional orientation of dentists and investigate which of their personal and practice characteristics can be regarded determining for these two aspects of their role as care providers.

Effects of glass ionomer sealants in newly erupted first molars after 5 years: a pilot study.

Objectives: The aim of the study was to investigate the caries-preventive effect of high-filled glass ionomer sealant in newly erupted first molars in a high-risk group. This investigation is part of a larger study amongst eight hundred and thirty-five 6-7-year-old Syrian children.

Methods: Children that had 1, 2 or 3 just erupted or erupting and at least one unerupted first molar (control) were enrolled in this pilot study.

Erosion-inhibiting effect of sodium fluoride and titanium tetrafluoride treatment in vitro.

The prevention of dental erosion with fluoride is still largely unknown territory. It was the aim of this study to determine the erosion-inhibiting effect of topical neutral 1% sodium fluoride (NaF) application and an application of a 4% titanium tetrafluoride (TiF4) solution compared with no treatment. Ten bovine incisors were selected and three enamel samples prepared from each tooth.

How dental utilisation in The Netherlands was affected by a radical reform of the dental insurance system.

Objectives: To establish the effects of the 1995 insurance system reform on dental utilisation.

Study Design: Four categories of patients experiencing homogeneous insurance changes - public/private insurance with and without additional private dental insurance--were analysed. The reform was hypothesised to increase dental expenditure for the Sickfund with (S+), and privately insured with (P+) and without (P-) additional dental insurance.

Prevalence of caries and lesions treatable through the ART approach in high caries risk schoolchildren in Damascus, Syria.

Objective: To determine the prevalence of dentinal lesions treatable through the atraumatic restorative treatment (ART) approach for high caries risk schoolchildren.

Subjects And Methods: A convenience sample was taken of 1,542 grade 1 and 931 grade 2 children from 21 primary schools in a low socio-economic area in Damascus. Dentinal lesions in which the smallest excavator (diameter of 0.