Oral self-care among dependent older New Zealanders.

OBJECTIVES: The objective of the study was to describe the occurrence and associations of oral self-care by dependent older New Zealanders. BACKGROUND: Dependent older adults who require some level of assisted daily care have been shown to have poorer oral health than their independent counterparts, yet national estimates are lacking. MATERIALS AND METHODS: A secondary analysis was conducted of data from New Zealand's 2012 Older People's Oral Health Survey, a national survey that interviewed and examined a representative sample of 2,218 dependent older adults living in aged residential care or receiving home-based care. Survey data were weighted for statistical analyses, and modelling was carried out using a modified Poisson approach. RESULTS: Overall, 59.5% (95% CI: 55.1, 63.7) of participants brushed their teeth twice a day, with this rate higher among women, Asians and those without cognitive or physical impairment. Cleaning interdentally at least once a week was less common than brushing, at 25.9% (95% CI: 21.5, 30.9), and that proportion was significantly lower among those with higher dependency or who were cognitively or physically impaired. Almost 9 in 10 (87.8%; 95% CI 83.1, 91.4) used fluoride toothpaste, and adults of high socio-economic status had lower rates of fluoride toothpaste use. Only 15.0% (95% CI 12.4, 18.0) used mouthwash, with this being most prevalent in Pasifika. More than half of those who wore dentures also wore them at night. CONCLUSION: Oral self-care was sub-optimal among dependent older New Zealanders. Improving the situation should be a high priority.

Evaluation of the Arabic short-form version of the Family Impact Scale (FIS-8).

BACKGROUND: Oral diseases can have a negative impact on both children and their families. The Family Impact Scale (FIS) is a commonly used measure to evaluate the parent/caregiver's perception of the impact of children's oral health on the family. A short-form version (the FIS-8) has been developed and translated into Arabic. AIM: To evaluate the validity and reliability of the FIS-8. DESIGN: Cross-sectional study of a random sample of two hundred and forty-six 12 years-old Libyan schoolchildren and their parents/caregivers (in 2019). Parents/caregivers completed questionnaires while their children underwent clinical examinations for dental caries experience and gingival status. Internal consistency of the FIS-8 was assessed. For discriminant validity, overall score and subscale scores of FIS-8 were compared across categorised oral disease levels. Construct validity was tested by assessing the associations of overall score and subscale scores with global ratings of overall well-being. Test-retest reliability was evaluated using a random sample of 10% of participants. RESULTS: The overall summary scale and subscales of FIS-8 succeeded in discriminating among ordinal categories of child dental caries experience, and a clear gradient was observed in mean FIS-8 scores across gingival status categories. There were moderate, positive correlations between the parents' and caregivers' overall score and subscale scores and the ratings for overall well-being (r = 0.39). The overall scale showed acceptable internal consistency (Cronbach's alpha = 0.79) and excellent test-retest reliability (ICC = 0.93). CONCLUSIONS: The Arabic version of the FIS-8 demonstrated acceptable properties and is likely to be suitable for wider use.

The residual dentition among home-based older New Zealanders receiving living support.

BACKGROUND: There have been no detailed descriptions of residual dentition patterns among older people living in the community. OBJECTIVES: To describe the residual dentition and associated oral health-related quality of life among older New Zealanders living in their own homes with government-funded assistance. MATERIALS AND METHODS: Using nationally representative data, we determined the residual dentition arrangement and Kennedy classification for each dental arch. Individuals were categorised according to their maxillary-mandibular dental configuration and prosthesis use. Data were weighted to make the estimates generalisable to the source population. RESULTS: Of the 895 clinically examined participants, 47.8% were dentate. One-quarter of those had maxillary tooth-bound saddles opposing a partially dentate mandible. Pasifika (people of Pacific Islands ethnicity) were most likely to have retained all of their dentition, while only the Maori ethnic group had no participants with a dentate arch. Only one in three of those with partially dentate upper and lower arches wore any maxillary denture; one in ten wore some form of mandibular denture. Partial dentures were common among those with an opposing edentulous jaw. Maxillary partial dentures were twice as common as their mandibular counterparts. CONCLUSION: Residual dentition patterns in older people are diverse and complex, and meeting their prosthodontic needs is not straightforward.

Common variants of EDA are associated with non-syndromic hypodontia.

OBJECTIVE: The aim of this case-control study was to investigate the association between non-syndromic hypodontia and nineteen common variants of candidate genes ectodysplasin A (EDA), paired box 9 (PAX9), msh homeobox 1 (MSX1) and axis inhibition protein 2 (AXIN2). SETTINGS AND SAMPLE POPULATION: Sixty-one hypodontia cases were frequency-matched to 253 controls with no missing teeth (excluding the third molars). MATERIAL AND METHODS: Self-report data and DNA samples were collected from each participant. RESULTS: The sample had a mean age of 16.6 years (SD = 7.3), with most participants being female (59.6%), and of New Zealand European origin (75.4%). Using multiple logistic regression analysis, it was found that the T-allele of rs12853659 (EDA) and the G-allele of rs2428151 (EDA) were both associated with a higher risk of hypodontia (odds ratio, OR = 2.79, 95% CI = 1.11-7.01; and OR = 2.87, 95% CI = 1.04-7.94, respectively). The G-allele of rs2520378 (EDA) showed a protective effect with an OR of 0.61 (95% CI = 0.38-0.99). The EDA SNP findings were consistent with previous reports included in a meta-analysis. No associations were found with the PAX9, AXIN2 and MSX1 genes, after adjusting for sex and ethnicity. CONCLUSIONS: Common variants of the EDA genes are associated with specific phenotypes of non-syndromic hypodontia, thus confirming their role in the regulatory pathways of normal tooth development. However, larger samples are needed to investigate the association further.

Family Impact of Child Oro-Facial Cleft.

OBJECTIVE: To describe the association between children's orofacial cleft (OFC) and families' quality of life (QoL), using the short-form Family Impact Scale questionnaire (FIS-SF). Also assessed were the psychometric properties of the FIS-SF, as well as whether certain demographic and clinical variables impacted the family. DESIGN: Observational cross-sectional study. SETTING: Tertiary care public children's hospital in New South Wales, Australia. PARTICIPANTS: Parents/caregivers of children with OFC. MAIN OUTCOME MEASURE(S): The short-form Family Impact Scale questionnaire. RESULTS: Two hundred and fourteen parents completed the FIS-SF. Excellent convergent validity was evident, but discriminant validity was weaker. Those children with velopharyngeal insufficiency/submucous cleft reported lower scores on the family/parental activity, and lower overall family impact scores than those with cleft lip (CL) or cleft palate (CP). Those with cleft lip and palate (CL/P) had poorer family/parental activity scores than those with CP. There were no systematic differences in FIS-SF scores by the child's age, gender, private health insurance, living location, the number of cleft-related operations, or whether a child had commenced orthodontic treatment. CONCLUSIONS: The FIS-SF is a valid and reliable measure for determining the impact that OFC has on family QoL. The impact of OFC on children's families differs according to cleft type.

Traumatic dental injuries among New Zealanders: Findings from a national oral health survey.

BACKGROUND/AIM: Little is known about adult dental trauma experience at the population level. The aim of this study was to estimate the prevalence and associations of dental injuries in New Zealand (NZ) adults. MATERIALS AND METHOD: Information about dental and orofacial trauma in a representative sample of NZ adults (aged 18-94) was collected in a national oral health survey. As well as self-reported information, the maxillary six anterior teeth were examined for signs of dental trauma. Survey weights were used. RESULTS: Of the 40.9% (95% CI: 37.6, 44.2) who reported previous orofacial trauma, 69.1% (95% CI: 64.3, 73.5), or just over one-quarter of the sample, reported that this included a dental injury. More males than females had experienced orofacial trauma (51.3% [95% CI: 45.8, 56.8] and 31.4% [95% CI: 27.9, 35.1], respectively). The most common injury was a "chipped or broken tooth" (66.6%, 95% CI: 60.6, 72.1). Almost three-quarters had sought treatment. Clinical examination revealed an overall trauma prevalence of 23.4% (95% CI: 21.0, 26.0) with more males than females affected. Some 14.9% (95% CI: 12.8, 17.2) had one injured tooth, while 6.5% (95% CI: 5.2, 8.1) had two injured teeth. The maxillary central incisors were the most frequently affected. Most participants with clinical signs of trauma had only one of the six maxillary teeth affected. The most common clinical dental trauma observation was evidence of "treatment" or an "untreated enamel fracture", and these were more common among males and those aged 35-44 years. CONCLUSION: Traumatic dental injuries constitute an important public health issue. More emphasis on preventing them in the NZ adult population is warranted, and public awareness of State-funded cover for dental injuries may need to be bolstered to enable equitable access for injury care. Overall, a greater emphasis on prevention and the importance of initial care for dental injuries could reduce the individual and societal burden.

Clinical validity of self-rated oral health among New Zealand nursing home residents.

OBJECTIVES: To investigate the clinical validity of self-rated oral health among older New Zealanders in aged residential care. MATERIAL AND METHODS: A national survey of oral health in aged residential care was carried out throughout New Zealand. Self-rated oral health was measured using Locker's global item and clinical examinations carried out by calibrated examiners. Analyses used survey weights. RESULTS: Consistent gradients were observed across the self-rated oral health categories in the mean number of decayed teeth (whether coronal or root surface caries), mean number of filled teeth (albeit in the opposite direction), and in the mean number of fillings needed. Consistent gradients were also seen in the same categories when comparing the current oral health status to their oral health status a year previous. No gradients in periodontal status were apparent. CONCLUSIONS: The older population in aged residential care can validly self-rate their oral health, although further investigation of periodontal status is warranted.

The residual dentition among New Zealanders in aged residential care.

BACKGROUND: Descriptions of the older population's dentition status are usually limited to indicators such as the edentulous proportion, the mean number of restored and missing teeth, and the proportion with a functional dentition, with very few reports describing in detail the nature of the residual dentition. OBJECTIVES: This study described the residual dentition among older New Zealanders living in residential aged care facilities. MATERIAL AND METHODS: Using national data from the Older People's Oral Health Survey, we determined the residual dentition arrangement and Kennedy classification for each dental arch. Individuals were categorised according to their maxillary-mandibular dental configuration. Data were weighted to make the estimates generalisable to the source population. RESULTS: Among the dentate 45% of the 987 clinically examined participants, the most prevalent configuration was maxillary tooth-bounded saddles against a partially dentate lower (24.7%; 95% CI: 20.4, 29.7). More younger participants generally had less tooth loss experience and had higher prevalence of Kennedy Classes II, III and IV. There were few sex differences, although more females had a fully dentate arch. Marked ethnic differences were observed: Maori were up to eight times as likely to have only mandibular anterior teeth remaining. Upper dentures were worn more than their lower counterpart. Age, sex and ethnic characteristics were associated with particular residual teeth configurations. CONCLUSIONS: Having various degrees of tooth loss was the norm, with the upper tooth-bounded saddles against any partially dentate lower combination most common, and limited to females. An edentulous maxilla opposed by some standing teeth was observed in over one-quarter of the population, and most common among Maori and those who were older. Maxillary prostheses were much more common than mandibular ones. Caring for dentate older people in aged residential care is likely to be complicated by the wide range of dentition configurations.

Oral status, cognitive function and dependency among New Zealand nursing home residents.

OBJECTIVES: To investigate clinical oral disease and its association with cognitive function and dependency among older New Zealanders in residential aged care. MATERIAL AND METHODS: National survey of oral health in aged residential care throughout New Zealand. We classified residents into 1 of 3 levels of care: "low dependency care (or assisted living)"; "high dependency care"; or "specialist dementia care/psychogeriatric care." The Abbreviated Mental Test characterised cognitive function as "unimpaired" (scores of 7-10), "moderately impaired" (4-6) or "severely impaired" (0-3). Intra-oral examinations were conducted, along with a computer-assisted personal interview. RESULTS: Most of the 987 clinically examined participants were either at low or high dependency care level, with another 1 in 6 in psychogeriatric care. Almost half overall had severely impaired cognitive function. Just under half of the sample had 1 or more natural teeth remaining. Negative binomial regression modelling showed that the number of carious teeth was lower among women and higher among those who were older, those with more teeth and in those with severely impaired cognitive function. Oral debris scores (representing plaque biofilm and other soft deposits on teeth) were higher in men, those with more teeth, and in those with severely impaired cognitive function. CONCLUSIONS: Impaired cognitive function is a risk indicator for both dental caries and oral debris in aged residential care.

The lived experience of Sjögren's Syndrome.

BACKGROUND: Sjögren's Syndrome is an autoimmune exocrinopathy characterised by lymphocytic infiltration of exocrine glands in multiple sites, with dry mouth as a primary presenting symptom. Although quantitative studies have shown the negative impact of both dry mouth and Sjögren's Syndrome on patients' quality of life, no qualitative diary and interview study has been undertaken to examine the lived experience of dry mouth for Sjögren's Syndrome sufferers. The aim of this qualitative study was to provide clinicians with insight into how dry mouth can impact on the daily lives of Sjögren's Syndrome patients. METHODS: The American-European Consensus Group (AECG) Revised International Classification criteria were used to identify participants from patients seen in an oral medicine clinic. After pilot study work to test the approach, the 10 main study participants were recruited. Diary entries and semi-structured interviews were used to explore how dry mouth affects their lives. Owing to the exploratory nature of the research, thematic content analysis was applied, allowing the themes to arise naturalistically from the data without bias or elicitation. RESULTS: The data showed that it is unrealistic to understand the experience of a single symptom, but that the disease as a whole needs to be taken into perspective. The empirical evidence supported four main themes that depicted the lived experience of Sjögren's Syndrome. These included: (1) the journey to diagnosis; (2) disease impact spectrum (of dry mouth amid other symptoms); (3) interactions with healthcare professionals; and (4) the positive coping process. CONCLUSIONS: The findings revealed patients' perspectives on diagnosis, coping with dry mouth and Sjögren's Syndrome, and interaction with healthcare professionals. Dry mouth is not a trivial symptom for Sjögren's Syndrome sufferers; it has considerable impact on their day-to-day lives. Healthcare professionals need to understand patients as individuals in their environment in order to be part of the Sjögren's journey.

Comparison of the ECOHIS and short-form P-CPQ and FIS scales.

BACKGROUND: The development of short-form versions of child oral-health-related quality of life (OHRQoL) scales has resulted in two closely related sets of measures. We set out to compare the properties and responsiveness of the Early Childhood Oral Health Impact Scale (ECOHIS--both "child" and "family" versions) and short-form Parental-Caregiver Perceptions Questionnaire (P-CPQ) and the Family Impact Scale (FIS) measures among New Zealand children with early childhood caries who underwent treatment under general anaesthesia (GA). METHODS: Secondary analysis of data from pretest/post-test clinical studies of consecutive clinical convenience samples undertaken in Wellington in 2005 and Auckland in 2010/11, with cross-sectional analyses using the former, and longitudinal analyses using the latter. RESULTS: Cronbach's α values for the ECOHIS-Child, P-CPQ-16 and P-CPQ-8 were 0.80, 0.88 and 0.80 respectively, and 0.83 and 0.68 (respectively) for the FIS-8 and the ECOHIS-Family. All scales showed acceptable cross-sectional construct validity, although that of the ECOHIS-Family was not as marked as that observed with the FIS-8. Responsiveness was acceptable, with the three child-focused measures showing similar effect sizes. The two family-focused measures were also similar. CONCLUSIONS: The ECOHIS-Child and the P-CPQ scales are very similar in their properties, but the ECOHIS-Family falls short of the FIS-8 in some important ways. The ECOHIS scales may be better deployed in epidemiological survey work rather than in health services research, whereas the P-CPQ-8, P-CPQ-16 and the FIS-8 seem to be well suited for the latter (particularly with children suffering from severe caries), but their epidemiological utility remains to be demonstrated.

Impact of traumatic dental injuries on the quality of life of schoolchildren.

BACKGROUND: Knowledge of the impact of traumatic dental injuries (TDI) on children's quality of life is sparse. AIM: To determine the association between TDI and oral health-related quality of life (OHRQoL) among schoolchildren aged 11-14 years. MATERIAL AND METHODS: A cross-sectional study was carried out involving a representative sample of 409 schoolchildren from 13 municipalities in the Midwest Region of the Brazilian Southern State of Santa Catarina. Clinical examination included the presence and type of TDI and the treatment provided (or needed) according to criteria used in the UK Children's Dental Health Survey. Dental caries in anterior teeth and malocclusion status were also collected according to WHO criteria. OHRQoL was assessed using the short form of the Child Perceptions Questionnaire (CPQ11-14), and the outcome was the prevalence of one or more adverse impacts on quality of life occurring often/very often. RESULTS: The prevalence of TDI was 16.6% (95% CI 13.0-20.2). The prevalence of one or more adverse impacts occurring often/very often was 46.6% (95% CI 41.7-51.5). Logistic regression modeling for the outcome indicated an independent and significant association between the prevalence of one or more adverse impacts occurring often/very often and the presence of TDI even after adjustment for gender, presence of dental caries in anterior teeth and malocclusion. A prevalence ratio of 1.79 (95% CI 1.16-2.76) of one or more adverse impacts occurring often/very often in schoolchildren with TDI was found, compared to those without TDI. CONCLUSIONS: Traumatic dental injuries appear to affect schoolchildren's OHRQoL.

Te Kaupeka Puniho: New Zealand's new dental school.

A look at the history of the only dental school in New Zealand situated at the University of Otago since it was first founded in 1905. It has moved twice within campus since then, with its most recent move seeing a brand new and award-winning building being opened in March 2021.

Trends in maxillofacial fractures in Otago-Southland, New Zealand: 2009 to 2020.

AIMS: Fractures to the maxillofacial region can have a serious impact on quality of life. The over-representation of males in the occurrence of almost all types and mechanisms of these injuries has tended to divert attention away from maxillofacial fractures in females. This study aimed to describe trends in maxillofacial trauma in a New Zealand tertiary trauma centre over a 12 year period, with a particular focus on gender differences. METHOD: A retrospective audit was undertaken of records for maxillofacial fracture cases referred to Dunedin Hospital and Southland Hospital Maxillofacial Units during the period January 2009 to December 2020. Information on age, gender and ethnicity, aetiology, alcohol and/or drug involvement, fracture type, and management was obtained from the Southern District Health Board - Health Connect South Network. RESULTS: Over the observation period, 1,561 patients presented for a total of 2,480 fractures. There was an increase in the proportion of fractures arising from falls and involving the orbit, while those due to interpersonal violence (IPV) or involving the mandible fell. Additionally, the proportion of cases treated conservatively rose, while the use of surgical fixation fell. While overall just over one in five patients were female, that proportion increased from one in six in 2009-2011 to one in four in 2018-2020. Fractures among females were due mainly to falls (55.6%) and road traffic accidents (23.2%), and frequently involved the orbit (46.3%). The proportion of presentations involving people aged 50 or older also increased over time. CONCLUSIONS: A greater proportion of women are suffering from facial fractures in the past decade than they have previously. Public health interventions for those at risk and their families are necessary. Interventions should have a focus on preventing falls and domestic violence, with a particular focus on older people and Maori/Pasifika populations. Improved and continued monitoring of these changing patterns is important for addressing the issues they present to New Zealand.

Risk factors for acute rheumatic fever: A case-control study.

Background: Acute rheumatic fever (ARF) and rheumatic heart disease (RHD) remain an inequitable cause of avoidable suffering and early death in many countries, including among Indigenous Maori and Pacific populations in New Zealand. There is a lack of robust evidence on interventions to prevent ARF. This study aimed to identify modifiable risk factors, with the goal of producing evidence to support policies and programs to decrease rates of ARF. Methods: A case-control study was undertaken in New Zealand using hospitalised, first episode ARF cases meeting a standard case-definition. Population controls (ratio of 3:1) were matched by age, ethnicity, socioeconomic deprivation, location, sex, and recruitment month. A comprehensive, pre-tested questionnaire was administered face-to-face by trained interviewers. Findings: The study included 124 cases and 372 controls. Multivariable analysis identified strong associations between ARF and household crowding (OR 3·88; 95%CI 1·68-8·98) and barriers to accessing primary health care (OR 2·07; 95% CI 1·08-4·00), as well as a high intake of sugar-sweetened beverages (OR 2·00; 1·13-3·54). There was a marked five-fold higher ARF risk for those with a family history of ARF (OR 4·97; 95% CI 2·53-9·77). ARF risk was elevated following self-reported skin infection (aOR 2·53; 1·44-4·42) and sore throat (aOR 2·33; 1·49-3·62). Interpretation: These globally relevant findings direct attention to the critical importance of household crowding and access to primary health care as strong modifiable causal factors in the development of ARF. They also support a greater focus on the role of managing skin infections in ARF prevention. Funding: This research was funded by the Health Research Council of New Zealand (HRC) Rheumatic Fever Research Partnership (supported by the New Zealand Ministry of Health, Te Puni Kokiri, Cure Kids, Heart Foundation, and HRC) award number 13/959.

Rationalisation and 'McDonaldisation' in dental care: private dentists' experiences working in corporate dentistry.

Introduction This study examines how dentists experience the corporatisation of dentistry and the impacts of rationalisation. The emergence of corporate dentistry in the early twenty-first century has introduced greater competition into the dental marketplace. Ritzer's theory of 'McDonaldisation' explores the rationalisation of services through corporatisation and provides an apt framework with which to understand the qualitative insights gathered through this project.Methods Semi-structured interviews and reflective journals were used to collect insights from dentists who were working in private practice. Data were then subjected to thematic analysis.Results A total of 20 private dentist participants provided 22 separate interviews and multiple reflective accounts. Following analysis, three key themes emerged: 1) opportunities provided by corporate dentistry; 2) balance between professionalism and commercialism in corporate dentistry; and 3) competition between independent and corporate dentistry.Conclusions The participants' insights demonstrate how Ritzer's four dimensions of rationalisation - efficiency, predictability, calculability and control - have been encapsulated by corporate dentistry in Australia. Corporate interests in Australian dentistry are perceived to improve competition and offer opportunities for younger and less experienced dentists, but the findings also suggest that those leading corporate dentistry need to ensure that rationalisation does not diminish the caring relationship between dentists and patients.

Food processing and its association with dental caries: Data from NHANES 2011-2014.

OBJECTIVE: To assess whether proportional contribution of unprocessed or minimally processed, processed or ultra-processed foods to daily energy intake is associated with dental caries in US adults. METHODS: This secondary cross-sectional analysis included adults aged 20 to 59 years old with complete oral examinations, using data gathered from cycles 2011-2012 and 2013-2014 of the continuous National Health and Nutrition Examination Survey (NHANES). Dietary recall data were categorized according to the NOVA classification into four groups: unprocessed or minimally processed foods (Group 1), processed culinary ingredients (Group 2), processed foods (Group 3) and ultra-processed foods (Group 4). The proportional contribution of each of these groups to mean daily energy intake was calculated and then cut into quartiles (Group 1, Group 3 and Group 4) or tertiles (Group 2). Two separate measures were used to assess dental caries: the decayed, missing, filled teeth (DMFT) index and, after exclusion of edentulous participants, prevalence of untreated caries. Poisson regression was used to model DMFT, while logistic regression was used to model the prevalence of untreated dental caries. Models were calculated for each NOVA group. All models were controlled for age, gender, race/ethnicity, level of education, income, access to oral health services, body mass index, smoking status and total energy intake. Analyses took into account NHANES sampling weights. RESULTS: We analysed data from 5720 individuals, of whom 123 (2.2%) were edentulous. Mean DMFT was 9.7 (± 0.2), while the prevalence of untreated dental caries was 26.0%. Mean daily energy intake was 2170 kcal (± 17). Mean contribution to overall daily energy intake was 28.6% (± 0.5) for G1 foods, 4.3% (± 0.1) for G2 foods, 10.1% (± 0.2) for G3 foods and 56.9% (± 0.5) for G4 foods. A higher intake of G3 was associated with lower DMFT at the fourth quartile (0.89; 95%: CI 0.81-0.96), while a higher intake of G4 was associated with a higher DMFT at the fourth quartile (1.10; 95% CI: 1.04-1.16). In the adjusted models for untreated dental caries, no statistically significant associations were found with any of the NOVA groups. CONCLUSION: Higher proportional intake of NOVA groups is only weakly associated with dental caries. Widespread exposure to a highly ultra-processed diet may explain these weak associations.