Frequency and type of tooth extractions in adults vary by age: register-based nationwide observations in 2012-2017.

Objective: This register-based study assessed the frequency of and age-specified variation in tooth extractions in adults visiting private dentists in Finland in 2012-2017.

Material And Methods: Retrospective study design was used on the register-based data of private sector services. Data of the entire 6 years, 2012-2017, included records of a total of 6,252,039 patients.

Why and when older people lose their teeth: A study of public healthcare patients aged 60 years and over in 2007-2015.

Objectives: This register-based study on public sector patients aged 60 years and over assessed annual age-specific volume of and reasons for tooth extractions as well as changes in these across the period 2007-2015.

Background: Alongside the rapidly ageing population, the demand for public oral healthcare services is growing. Damaged teeth may induce a long-lasting inflammation burden in old age.

Retained dental roots of adults: A nationwide population study with panoramic radiographs.

The aim of this study was to assess the occurrence and nature of retained dental roots and their associations with demographics in the Finnish adult population. From the cross-sectional nationwide Health 2000 Survey of the Finnish population aged 30 years and older, 6005 participants with clinical oral examination and panoramic radiographs were included. Occurrence and characteristics of all retained dental roots were examined.

Compliance with Key Practices of Root Canal Treatment Varies by the Reward System Applied in Public Dental Services.

Introduction: To assess clinical practices in root canal treatments (RCTs) performed by general dental practitioners under 2 different reward schemes applied in public dental services.

Methods: This study used a retrospective design with tooth as the observation unit. The data included all teeth (n = 547) with nonsurgical primary RCT completed in 2016.

Varying Manpower Alters Dental Health in a Developing Health Care System.

Objectives: This study assessed relationships between oral health care workforce and dental health in 12-year-olds in a developing health care system in Iran from 1992 to 2014 and compared these findings with the most recent corresponding findings in selected countries.

Methods: Data regarding oral health care workers from 1962 to 2014 were extracted from the comprehensive human resource data bank of the Shahid Beheshti Research Institute of Dental Sciences. Data regarding decayed, missing, and filled permanent teeth (DMFT) of 12-year-olds, extracted from official statistics, described dental health.

Age- and Time-Related Trends in Oral Health Care for Patients Aged 60 Years and Older in 2007-2017 in Public Oral Health Services in Helsinki, Finland.

Background: Population aging will likely have an impact on oral health care trends. The aim of this study was to describe age- and time-related trends in oral health care in people ages 60 and older in Public Oral Health Services (POHS) in Helsinki, Finland.

Materials And Methods: Material for the study comprised the electronic documentation of oral health care procedures performed on patients 60 years and older (N = 282,143) in POHS during 2007-2017.

Age-related variation in volume and content of restorative private dental care for adults in Finland in 2012-2017: A nationwide register-based observation.

Objectives: This study assessed age-related variation in the volume and content of restorative dental care performed by private dentists for adults in Finland in 2012-2017.

Methods: This retrospective register-based observational study utilized the Social Insurance database of private dental services in 2012 and 2017, including all patients. The data were aggregated into 5-year age groups for 20-89-year-olds; those aged 90+ formed one group.

Radiographic outcome of root canal treatment in general dental practice: tooth type and quality of root filling as prognostic factors.

Objective: This study evaluated the radiographic outcome of root canal treatments (RCTs) performed by general dental practitioners (GDPs) with focus on tooth type and quality of root filling.

Materials And Methods: The target population included all patients receiving root filling by GDPs in City of Helsinki in 2010-2011. Equal numbers of each tooth type (anteriors, premolars, molars) by jaw were included, resulting in 426 teeth.

Accidental perforations during root canal treatment: an 8-year nationwide perspective on healthcare malpractice claims.

Objectives: To assess occurrence and its variation over time of serious accidental perforations during endodontic treatment and the fate of perforated teeth by tooth type and characteristics of patients and dentists.

Materials And Methods: Data, based on patient documents on healthcare malpractice claims, comprised all endodontic injuries (n = 970) verified by the Patient Insurance Centre in Finland in 2002-2006 and 2011-2013. Two specialists in endodontics scrutinized the documents.

Type and time of first re-intervention of posterior restorations - 13-year scenario at the public dental service.

We investigated the first re-interventions of two- and three-surface direct restorations on posterior teeth, specifically noting the type and time of the first re-intervention. In 2002, altogether 5542 posterior two- and three-surface composite and amalgam restorations were done for 3051 patients aged 25-30 years at Helsinki City Public Dental Service (PDS). Based on electronic patient records, we analysed all restorations ( = 2445) having re-intervention during a 13-year follow-up.

Prevalence of third molars determined by panoramic radiographs in a population-based survey of adult Finns.

Objectives: The aim of the study was to examine the prevalence of third molars in panoramic radiographs in a population-based study of adults aged ≥30 years.

Methods: Out of a sample of 8028 inhabitants of Finland, selected with two-staged stratified cluster-sampling method for the Health 2000 Survey, 5989 participated in clinical oral examination and panoramic radiography. Mean age was 52.

Behavioural and socioeconomic factors associated with the simultaneous occurrence of periodontal disease and dental caries.

The aim was to evaluate the association of behavioural and socioeconomic factors with the occurrence of periodontal disease and dental caries, paying special attention to the simultaneous occurrence of these diseases. The study population consisted of 5255 dentate persons aged ≥30 years from a nationally representative survey. Caries and probing pocket depth were recorded by tooth and calculated in relation to the number of existing teeth.

Impact of type of tooth on outcome of non-surgical root canal treatment.

Objectives: We assessed the impact of type of tooth on the outcome of root canal treatment (RCT) according to factors potentially weakening the prognosis such as preoperative apical periodontitis (AP) and treatment modality (primary or secondary RCT).

Materials And Methods: We scrutinized patient documents including pre- and postoperative radiographs of 640 permanent teeth receiving non-surgical RCT at Helsinki University Clinic in 2008-2011. Of teeth, 44% were molars, 32% premolars, and 24% anterior teeth.

What kind of third molars are disease-free in a population aged 30 to 93 years?

Objectives: The aim of the study was to characterize third molars that have remained disease-free in a representative sample of the Finnish population aged 30 years and older.

Materials And Methods: Two-staged stratified cluster sampling (N = 8028) was used, and 6005 subjects participated in a clinical oral examination and panoramic radiography. Disease-free third molars were characterized as follows: no dentinal caries, no filling, periodontal pocket depths of neighboring second molars less than 4 mm, and no radiographic pathological findings.

Root Canal Irrigants and Medicaments in Endodontic Malpractice Cases: A Nationwide Longitudinal Observation.

Introduction: The aim of this study was to assess the role of root canal irrigants and medicaments in endodontic injuries verified in Finland and to estimate the rate of such events over time.

Methods: The study material comprised all endodontic injuries verified by the Patient Insurance Centre in 2002 to 2006 (n = 521) and 2011 to 2013 (n = 449). The data, based on patient documents scrutinized by 2 specialists in endodontics, included patients' and dentists' sex and age and the service sector.

Frequent consumption of sugar-sweetened beverages and sweets starts at early age.

Objectives: We aimed to investigate the habitual consumption of sugar-sweetened beverages (SSBs) and sweets in relation to mothers' behaviours and practices with their infants.

Methods: We targeted mothers with children 1-24 months (N = 200) visiting Public Child Health clinics in Finland. During routine visits mothers (N = 179) volunteered to complete a self-administered anonymous questionnaire about their child's health-related behaviours (consumption of sweets and SSBs, tooth brushing frequency).

Education-related inequality in restorative dental treatment need over 11 years in two areas of Finland.

Objectives: This study aimed to analyse education-related inequality in restorative dental treatment need among adults aged 30 years and older living in Northern and Southern Finland in 2000 and 2011.

Methods: Data were taken from the Health 2000 and 2011 population-based follow-up surveys, including information gathered by interviews and clinical dental examination. Final effective sample sizes were 2423 people in 2000 and 1192 people in 2011.

Longevity of 2- and 3-surface restorations in posterior teeth of 25- to 30-year-olds attending Public Dental Service-A 13-year observation.

Objectives: The aim of this patient document-based retrospective study among 25- to 30-year-old Finnish adults was to evaluate longevity of 2- and 3-surface posterior restorations according to type of tooth, size of restoration, and restorative material used.

Methods: Data were extracted from electronic patient files of the Helsinki City Public Dental Service (PDS), Finland. A total of 5542 2- and 3-surface posterior composite and amalgam restorations were followed indirectly from 2002 to 2015.

Use of oral health care services in Finnish adults - results from the cross-sectional Health 2000 and 2011 Surveys.

Background: During the 2000s, two major legislative reforms concerning oral health care have been implemented in Finland. One entitled the whole population to subsidized care and the other regulated the timeframes of access to care. Our aim was, in a cross-sectional setting, to assess changes in and determinants of use of oral health care services before the first reform in 2000 and after both reforms in 2011.

Operator-related aspects in endodontic malpractice claims in Finland.

Objective: We analyzed operator-related differences in endodontic malpractice claims in Finland.

Materials And Methods: Data comprised the endodontic malpractice claims handled at the Patient Insurance Centre (PIC) in 2002-2006 and 2011-2013. Two dental advisors at the PIC scrutinized the original documents of the cases (n = 1271).

Association of current employment status with oral health-related behaviors: findings from the Finnish Health 2000 Survey.

The aim of this study was to compare the oral health-related behaviors of unemployed people with those of employed people and to assess whether they differ according to the length of unemployment. This study is part of the Health 2000 Survey in Finland. The cross-sectional data were based on interviews and questionnaires.

Does Smoking Hamper Oral Self-Care Among Dental Professionals?

Objectives: Smoking may impact oral self-care (OSC). This study aimed to analyze the role of smoking in OSC among Iranian dental health professionals.

Materials And Methods: The cross-sectional data were collected at two annual dental meetings and seven randomly selected dental schools in Iran.

Oral health behaviors and bacterial transmission from mother to child: an explorative study.

Background: Health behaviors play a major role in the prevention of the most common oral diseases. To investigate health behaviors related to the potential transmission of oral bacteria from mother to child using novel multiple correspondence analysis (MCA).

Methods: Mothers (n = 313) with children under three years attending two municipal child health clinics in Finland completed a self-administered questionnaire on health knowledge and behaviors such as sharing a spoon with their child, kissing on the lips, and the mothers' tooth brushing, smoking, age, and level of education.

The association of depression and anxiety with dental caries and periodontal disease among Finnish adults.

Objective: To explore the association of depression and anxiety with two oral health outcomes, dental caries and periodontal disease and assess possible mediators for any of the associations.

Methods: Secondary analysis of the Finnish Health 2000 Survey. Depression was assessed with Beck's Depression Inventory and anxiety with Composite International Diagnostic Interview.