Fissure sealants or fluoride varnish? Factors associated with choice of management method for occlusal caries in Public Dental Service in Norway.

PURPOSE: The aim of this practice-based study was to identify factors associated with choice of caries management method in first permanent molars in high-risk children treated in Public Dental Service in Norway. METHODS: The present study was based on practice-based observational data from 366 high-risk children (6-9 years). Caries management of occlusal surface of first permanent molars was used as outcome variable and categorized into "no treatment", "fluoride varnish" or "fissure sealant". Patient-related variables (age, gender, oral hygiene, caries experience at age 5, sugar snacking and dental anxiety), tooth-related variables (upper or lower jaw and diagnosis of occlusal surface) and county were used as independent variables. Data were analysed by descriptive analyses followed by generalized structural equation models (GSEM) and presented as relative risk ratios (RRR) with 95% confidence intervals (CIs). RESULTS: In 319 of the 366 children, both first permanent molars in the same jaw were available for analyses, 276 (87%) had the same diagnosis for both teeth and received the same treatment. Multivariable analysis at patient level showed that age (RRR = 2.42, CI 1.38, 4.23) and caries experience (RRR = 1.39, CI 1.09, 1.77) were associated with higher probability of fissure sealant, while the county variable was significantly associated with lower probability for fluoride varnish use (RRR = 0.03 (0.004, 0.31). CONCLUSION: The majority of high-risk children in PDS received fluoride varnish or fissure sealants on newly erupted occlusal surfaces of first permanent molars. In addition to age and caries experience of the child, county appeared to substantially influence occlusal caries management method.

Psychological impact of the COVID-19 pandemic on dental health personnel in Norway.

BACKGROUND: The SARS-CoV-2 pandemic put a pressure on all healthcare professionals and has affected the delivery of health care services globally. There is a need to understand the impact on different health care professionals in different countries. The aim of the present study was to explore the psychological impact of the pandemic among dental staff in Norway in relation to background characteristics, work situation and preparedness of the service. METHODS: A structured questionnaire sent electronically to dentists, dental hygienists and dental assistants inquired information about the lockdown period in Norway (13 March-17 April 2020). Distributions of background characteristics, perceptions of preparedness and psychological impact were calculated. Exploratory factor analysis was performed, and Structural Equation Models (SEMs) were used to compare psychological impact between dental professionals treating patients versus not during lockdown. RESULTS: Among the 1237 respondents, 58.8% worked clinically with patients. The majority were concerned of becoming infected (71.9%), of infecting others (85.4%) and/or of their family becoming infected (76.9%). Respondents who treated patients felt significantly more insecure about whether having become infected or not. The minority felt discriminated (6.7%), worried about death (11.7%), felt that life was threatening (9.8%) or felt loss of control of their lives (8.9%). More than 80% agreed that their workplace handled the situation well. Four factors were retrieved from the factor analysis. SEMs showed that gender and work experience had a significant effect on the factors Instability, Infection and Concerns. Respondents with work experience ≥10 years were less likely to express fear about Instability and Infection. Personnel reporting that their workplace had adequate equipment were also less concerned, however having adequate equipment did not reduce the factor Loss of control. CONCLUSION: The present study showed a considerable psychological impact of the COVID-19 pandemic on dental personnel in Norway regardless of working clinically with patients or not. However, working with patients increased the insecurity about own infection status and of infecting people close to them. A safe working environment and adequate infection control measures are associated with less fear of infection and feeling of instability.

Stainless-steel crowns in children: Norwegian and Finnish dentists' knowledge, practice and challenges.

BACKGROUND: Stainless-steel crowns (SSCs) are recommended for restorative treatment of young teeth severely affected by caries, fractures or dental developmental disorders (DDDs). However, despite recommendations and clinical evidence, SSCs are not widely used by general dentists, who favour extraction and more conventional restorations. The present study aimed to investigate the views of and use of SSCs among Norwegian and Finnish dentists. METHODS: The present study was a cross-sectional survey among Norwegian and Finnish dentists. An electronic questionnaire was sent to Norwegian and Finnish dentists asking whether they used SSCs and on which indications. In addition, the questionnaire assessed reasons for non-use and dentists' perceptions regarding advantages and challenges in the use of SSCs, as well as the need for additional training. Distributions of background characteristics, use of and views on SSCs were calculated, and statistical significance of the associations between respondents' background and their answers were evaluated. RESULTS: Of the 574 Norwegian and 765 Finnish respondents, only 12.0% and 12.9% reported to use SSCs, respectively. The most frequently reported barrier reported by those who did not use SSCs was lack of practical training. The most frequent challenge reported by those using SSCs was difficulties in crown adjustment followed by aesthetic issues, and the most frequently reported advantage was that SSCs maintain the function and occlusion. The majority of respondents reported a need for more information and practical training in the use of SSCs, with hands-on course as their most frequently preferred education type. CONCLUSION: Although the value of SSCs for restoring young molars is recognized by Norwegian and Finnish dentists, SSCs are rarely used by general dentists. The majority of the respondents reported lack of training and materials and was interested in receiving more information and education.

Restorative material choices for extensive carious lesions and hypomineralisation defects in children: a questionnaire survey among Finnish dentists.

AIM: This survey assessed Finnish dentists' treatment decisions and choices of restorative materials in selected paediatric dental patient cases, with special emphasis on stainless steel crowns (SSCs). METHODS: A questionnaire with patient descriptions and tooth photographs was e-mailed to members of Finnish Dental Society (n=3,747). The respondents were asked to choose their preferred treatment in cases describing 1) extensive occlusal carious lesion in a primary molar of a cooperative child; 2) an identical lesion, treated under dental general anaesthesia (DGA); and 3) a symptomatic first permanent molar with enamel hypomineralisation (consistent with Molar-Incisor Hypomineralization, MIH) and post-eruptive breakdown. Only responses from dentist treating children were included (final n=765). RESULTS: The majority (47.3%) would have preferred restoration of the extensive primary tooth caries in a normal setting using resin-modified glassionomer cement, and 4.3% by using SSC. The preference of SSC as treatment choice increased to 25.4% upon implementation of DGA. The majority would treat the symptomatic permanent MIH molar with a resin composite restoration (45.0%), while 10.5% suggested SSC. Compared to general dentists, paediatric dentists had a stronger preference for SSCs. CONCLUSIONS: Although the respondents emphasised patient cooperation, but also tooth prognosis and material strength behind their treatment decisions, SSC was an uncommon choice.

Treatment decisions regarding caries and dental developmental defects in children - a questionnaire-based study among Norwegian dentists.

BACKGROUND: Current knowledge on treatment strategies and choice of restorative materials when treating deep caries or severe dental developmental defects (DDDs) in young individuals is scarce. Therefore, the aim was to investigate Norwegian dentists´ treatment decisions and reasons for treatment choice when treating deep caries in primary teeth and severe DDDs in permanent teeth in children. METHODS: A pre-coded questionnaire was sent electronically to all dentists employed in the Public Dental Service (PDS) in Norway (n = 1294). The clinicians were asked about their background characteristics and how often they registered DDDs. Three clinical cases were presented to the dentists and asked to prioritize treatment options and reasons for their choice. RESULTS: After three reminders, 45.8% of the dentists answered. Most clinicians were general practitioners (96.3%), females (77.9%), under 41 year-olds (59.4%), graduated in 2001 or later (61.1%), and representing all regions of Norway. The respondents registered molar incisor hypomineralisation (MIH), other DDDs and dental fluorosis (DF) frequently, 523 (91.1%), 257 (44.8%) and 158 (27.5%), respectively. In case 1a with severe dental caries in a primary molar, the preferred treatment was resin-modified glass ionomer cement (RMGIC) (58.3%), followed by glass ionomer cement (GIC) (17.9%) and zinc oxide-eugenol (ZOE) (13.2%). Extraction, compomer or stainless steel crowns (SSC) were preferred by 0.9, 0.7 and 0.4%, respectively. In case 1b, which was identical to case 1a, but treated under general anaesthesia, the preferred treatment alternatives were RMGIC (37.1%), resin composite (RC) (17.6%) and GIC (17.2%). Extraction and SSC were chosen by 15.1 and 7.2%, respectively. In case 2, showing a severely hypomineralised and symptomatic first permanent molar, the dentists preferred RC (38.4%), followed by RMGIC (26.6%) and GIC (19.0%). Extraction and SSC were chosen by 8.7 and 5.4%, respectively. The treatment choices were not significantly affected by the dentists' background characteristics. The reasons for dentists' treatment decisions varied for each patient case; patient cooperation, prognosis of the tooth and own experience were the dominant reasons. CONCLUSIONS: A notable disparity in treatment choices was shown indicating that Norwegian dentists evaluate each case individually and base their decisions on what they consider best for the individual patient.

Fissure sealants or fluoride varnish? Routines and attitudes among dental health personnel in Norway.

PURPOSE: To investigate routines and attitudes among dentists and dental hygienists concerning use of fissure sealants and fluoride varnish for non-operative management of occlusal caries. METHODS: All dentists and dental hygienists working in child dental care in three counties in Norway were invited to answer a questionnaire on routines for use of fissure sealants and fluoride varnish. Nine statements regarding attitudes towards use of sealants were scored using a five-point Likert scale. Multivariable logistic regression analyses were performed to assess indicators associated with reported routines for use of sealants and varnish. The study was approved by the Norwegian Centre for Research Data. RESULTS: In total 142 of 189 (75%) dentists and dental hygienists answered the questionnaire. The majority of the respondents, n = 83 (59%), reported to prefer fissure sealants while fluoride varnish was preferred by 57 (41%) of the respondents. Frequent use of fissure sealants was reported by 58 (41%) and frequent use of varnish by 104 (74%) of the respondents. Most (n = 104, 74%), used sealants on specific indications, and 89 (64%) opened fissures only when suspecting dentine caries. Preferred method and routines for occlusal caries management differed between counties (p < 0.05). Almost all clinicians agreed with the statement that sealants are protective against caries, while statements regarding costs, technique sensitivity and children's cooperation revealed some concerns regarding fissure sealing. CONCLUSIONS: Fissure sealants were the preferred method for occlusal caries management despite reported concerns related to technical aspects and patient cooperation. County-level variation in frequency of sealant use was observed.

The Susceptibility to Dental Erosion Differs among Individuals.

Studies of wine tasters and patients with self-induced vomiting have revealed that 30-50% of individuals at high risk do not develop erosive lesions. The aim was to investigate this apparent individual susceptibility to enamel erosion. Two enamel specimens were made from each of 3 premolars from 8 persons (donors). Six acrylic mouth appliances were worn by 6 volunteers (carriers). One specimen from each donor was mounted on each appliance. The carriers wore the appliances for 9 days. The appliances were immersed in 0.01 M HCl for 3 min twice per day to imitate a vomiting/reflux situation. The enamel specimens were analysed by a white-light interferometer to measure enamel loss (in micrometres). The enamel loss varied significantly both between the donor teeth (p = 0.009) and the carriers (p = 0.004). The lesion in the specimen with the largest amount of enamel loss was 4 times as deep as in the specimen with the lowest. In 1 carrier, all specimens displayed enamel loss above the mean, including the specimen from the donor with the most resistant enamel. The variation in susceptibility to erosion among individuals appears to be influenced both by the sustainability of the enamel and by factors in the oral environment. This could explain the variation in prevalence and severity of dental erosions among patients exposed to similar acidic challenges. The results suggest that for certain individuals, only minimal acidic challenges may be sufficient to cause damage to the teeth, while others may never develop dental erosions despite extensive exposure to acid.