A Randomized Controlled Trial Comparing Collagen Matrix to Hemostatic Gelatin Sponge as Socket Seal in Alveolar Ridge Preservation.

(1) Objectives: This study aimed to compare a collagen matrix to a hemostatic gelatin sponge as a socket seal in alveolar ridge preservation (ARP). (2) Methods: Systemically healthy patients planned for ARP at two sites with more than 50% of the buccal bone wall remaining after tooth extraction were eligible for inclusion. ARP involved socket grafting using collagen-enriched deproteinized bovine bone mineral. Sites were then randomly assigned to the test group (collagen matrix) or the control group (hemostatic gelatin sponge). The primary outcome was soft tissue thickness in the center of the site at 4 months, analyzed on cone-beam computed tomography. Secondary outcomes included the buccal and lingual soft tissue heights, horizontal bone loss, buccal soft tissue profile changes, wound dimensions, and Socket Wound Healing Score (SWHS). (3) Results: In total, 18 patients (12 females, 6 males) with a mean age of 57.3 years (SD 11.1) were included. Four months after ARP, the soft tissue thickness in the center of the site amounted to 2.48 mm (SD 0.70) in the test group and 1.81 mm (SD 0.69) in the control group. The difference of 0.67 mm (95% CI: 0.20-1.14) in favor of the collagen matrix was statistically significant (p < 0.009). The buccal soft tissue height was also statistically significantly higher for the collagen matrix (0.72 mm; 95% CI: 0.06-1.38; p = 0.034). A trend favoring the collagen matrix was found for the lingual soft tissue height (p = 0.066). No significant differences between the groups in terms of horizontal bone loss, buccal soft tissue profile changes, wound dimensions, and the SWHS were found. (4) Conclusions: The absence of significant differences in hard tissue outcomes suggests that both the collagen matrix and hemostatic gelatin sponge effectively sealed the extraction socket and supported bone preservation. However, the collagen matrix better maintained soft tissue dimensions. The clinical relevance of this finding with respect to the necessity for adjunctive soft tissue augmentation at the time of implant placement is yet to be studied.

Awareness of sports-related dental emergencies and prevention practices among Libyan contact sports coaches: A cross-sectional study.

Background and aims: Despite the high incidence rate of dental trauma and its possible devastating physical and psychological consequences on children, little is known about sport-related dental trauma and its prevention and management among Libyan sports coaches. The present study aimed to assess the knowledge and attitude of Benghazi contact sports coaches regarding sport-related dental trauma and its prevention and management. Methods: A cross-sectional study design was used. Two hundred and thirty-one contact sports coaches were recruited from different public and private youth sports centers across Benghazi. The data were collected using a self-administered questionnaire translated into Arabic and piloted to evaluate its validity and clarity. In addition, Mann-Whitney U, Kruskal-Wallis, and χ 2 tests were used to check associations between the variables. Results: A total of 151 contact sports coaches returned a completed questionnaire; the majority of coaches (74%) have seen orofacial injuries during their coaching career, whereas less than half of them (47%) personally experienced these injuries. Only one participant said he would preserve the tooth in milk, and four indicated that they would replant it. Most coaches (89.4%) knew what a mouthguard is, but 53.6% would recommend its use, and these were more likely to have previously used mouthguards (p ≤ 0.001). About 41.1% received previous training on TDIs-related emergencies. Higher knowledge scores were observed among coaches who previously received training (p = 0.023). Conclusion: The findings of this study indicate low awareness of how to manage and prevent orofacial injuries among Libyan contact sports coaches, even though they commonly encounter these injuries and believe in mouthguards' effectiveness. Previous training on managing emergencies and experience appeared to influence the coaches' knowledge. Training coaches on preventing TDIs and their early management in sports fields should be an implemented policy and a prerequisite to obtaining a training license.

In-vitro evaluation of the shear bond strength and fluoride release of a new bioactive dental composite material.

BACKGROUND: The aim of this study was (1) to determine and compare the shear bond strength (SBS) of a bioactive composite "Activa Bioactive Restorative" with and without bonding agent and a nanocomposite "Filtek Z350 XT/Z350" and (2) to measure and compare the amount of fluoride release from a bioactive composite "Activa Bioactive Restorative" and a glass ionomer "Equia forte". MATERIAL AND METHODS: Forty two dentin surfaces from freshly extracted human molars were prepared for shear bond strength testing. The specimens were randomly divided into three equal groups. The restorative materials were applied to all dentin surfaces according to the manufacturer's instructions, using a special jig (Ultradent) in the following manner : Group 1 (Activa Bioactive Restorative with adhesive), Group 2 (Activa Bioactive Restorative without adhesive) and Group 3 (Filtek Z350 XT/Z350). The bonded specimens were subjected to thermocycling in 5°C and 55°C water baths then tested for SBS in a universal testing machine (1 mm/minute). Kolmogorov-Smirnov and Levene tests were used to evaluate the distribution of the variable and the equality of variances respectively and a Student's T- test was applied to compare the mean strength between the groups. In the next test, thirty disc shaped specimens were fabricated using Activa BioActive restorative and Equia Forte; 15 specimens from each material. The specimens of each group were immersed separately in 5 ml of deionized water. Fluoride release was measured daily throughout 15 days using a fluoride-specific ion electrode and an ion-analyzer. Repeated measures analysis of variance with one within-subject factor (time) and one between-subject factor (Activa Bioactive / Equia Forte) was applied to compare the amount of released fluoride between groups and within time. It was followed by univariate analyses and Bonferroni multiple comparisons tests. RESULTS: The mean shear bond strength of Activa Bioactive Restorative with adhesive was found to be 17.379 (± 8.5043) MPa and 19.443(± 8.3293) MPa for the Filtek Z350 XT/Z350 group. There was no significant difference between both groups. Regarding fluoride release, the amount of Fluoride released was significantly greater in the Equia Forte group compared to the Activa Bioactive group (-p-value<0.05). The mean amount of Fluoride has significantly decreased over time with Activa Bioactive group (-p-value<0.001); it showed the highest fluoride release during the first 24 hours post-setting. Also in the Equia Forte group, the mean amount of Fluoride release showed a progressive and significant decrease over time (-p-value<0.001), although the amount of Fluoride released was significantly greater in the Equia Forte group compared to the Activa Bioactive group (-p-value<0.05). CONCLUSIONS: Activa Bioactive Restorative with adhesive and a nanocomposite showed similar bond strengths. Activa Bioactive Restorative doesn't have the self-adhesive property. The fluoride ion release profile of Activa was lower than that of the Equia Forte. Key words:Bioactive composite, nanocomposite, glass ionomer, fluoride release, shear bond strength, thermocycling.

Effect of Oral Health Promotion on Caries Experience and Oral Cleanliness of School Children in Kerung, Nepal: A Prospective 6-month Follow-Up Study.

BACKGROUND: A longitudinal oral health promotion project on caries experience and oral cleanliness was performed in a remote village in Nepal. The aim of this 6-month prospective survey was to investigate the impact of an oral health promotion project on caries experience, oral health-related behaviour, and general knowledge about oral health in Kerung, a remote village in Nepal. METHODS: A prospective study was conducted in a convenience sample of children from the local school in Kerung. At baseline and after six months, dental plaque scores and caries experience scores were measured by calibrated examiners. Validated questionnaires on oral health habits and knowledge on oral health were taken. In addition, an oral health promotion program was developed. RESULTS: At baseline, 359 children were included, of which 266 could be surveyed after six months. A statistically significant decrease in the mean plaque score was found at after six months with a higher reduction for boys. A significant decrease in caries prevalence, as well as a significant increase in knowledge about oral health, was observed. Furthermore, after six months there were significantly more children reporting that they brushed their teeth for at least two minutes. CONCLUSIONS: Dental screenings and a comprehensive educational program resulted in a significant improvement of oral health.

The impact of a prospective 4-year longitudinal school intervention for improving oral health and oral health inequalities in primary schoolchildren in Flanders-Belgium.

BACKGROUND: Oral diseases and socio-economic inequalities in children are a persisting problem. AIM: To investigate the 4-year longitudinal impact of an oral health promotion programme on oral health, knowledge, and socio-economic inequalities in primary schoolchildren. DESIGN: The intervention was carried out between 2010 and 2014 within a random sample of Flemish primary schoolchildren (born in 2002). It consisted of an annual oral health education session. ICDAS/DMFT, care level, knowledge scores, and plaque index were used as outcome variables. Being entitled to a corrective policy measure was used as social indicator. Mixed model analyses were conducted to evaluate changes over time between intervention and control group and between higher and lower social subgroups. RESULTS: A total of 1058 participants (23.8%) attended all four sessions. The intervention had a stabilizing effect on the number of decayed teeth and increased knowledge scores. No statistically different effect on the two social groups could be demonstrated. Socio-economic inequalities were present both at T0 and T4 . CONCLUSION: The oral health promotion programme had a positive impact on oral health knowledge and stabilized the number of decayed teeth. No impact on inequalities could be demonstrated, although a higher dropout rate in children with a lower social status was seen.

Dental Attendance in Undocumented Immigrants before and after the Implementation of a Personal Assistance Program: A Cross-Sectional Observational Study.

Undocumented immigrants are a high-risk social group with low access to care. The present study aims to increase awareness and dental attendance in this subgroup, assisted by community health workers (CHW). Starting from 2015, two trained dentists volunteered to perform free oral health examinations and further dental care referral in a welfare organisation in Ghent, Belgium. In 2016 and 2017, a two-day oral health training was added, enabling social workers to operate as community oral health workers and to provide personal oral health advice and assistance. Over the three years, an oral health examination was performed on 204 clients from 1 to 69 years old, with a mean age of 36.7 (SD = 15.9), showing high levels of untreated caries (71.6%; n = 146) and a Dutch Periodontal Screening Index (DPSI) score of 3 or 4 in 62.2% of the sample (n = 97). Regarding dental attendance, the total number of missed appointments decreased significantly, with 40.9% in 2015, 11.9% in 2016 and 8.0% in 2017 (p < 0.001). Undocumented immigrants can be integrated into professional oral health care. Personal assistance by community health workers might be an effective method, although this requires further investigation.

Accessibility to oral health care for people on social assistance: a survey of social service providers from Public Welfare Centers in Flanders.

OBJECTIVES: The goals of the present study were as follows: (i) to explore the characteristics of the Flemish Public Centers for Social Welfare (PCSW) concerning oral health care; (ii) to explore possible barriers experienced by people on social assistance and oral health-care providers; and (iii) to explore the accessibility of general and oral health care for people on social assistance. METHODS: The data of this cross-sectional study were obtained by a survey of social service providers working in a PCSW. For this purpose, a new questionnaire was developed. The survey was validated by means of a pilot study. All 306 PCSWs in Flanders were invited to participate in this survey, of which 192 (62.7%) responded. RESULTS: The findings demonstrate that for people on social assistance, financial limitations and low prioritisation of oral health are the main barriers to good oral health care. The study reveals that such individuals experience greater financial barriers and poorer access to a dentist than to a general medical practitioner. The study also reveals that dentists report financial concerns and administrative burdens as the main barriers in treating this subgroup. The responses of PCSWs demonstrate that local dentists are reluctant to treat this subgroup. CONCLUSION: Additional efforts are needed to improve the accessibility of oral health care for people on social assistance. Recommended improvements at the organisational level could improve increased education to target the population on the importance of oral health care. Administrative burden and financial concerns of the providers also need to be addressed to decrease their reluctance to work with those on social assistance.

Socioeconomic inequalities in caries experience, care level and dental attendance in primary school children in Belgium: a cross-sectional survey.

OBJECTIVES: Oral health inequality in children is a widespread and well-documented problem in oral healthcare. However, objective and reliable methods to determine these inequalities in all oral health aspects, including both dental attendance and oral health, are rather scarce. AIMS: To explore oral health inequalities and to assess the impact of socioeconomic factors on oral health, oral health behaviour and dental compliance of primary school children. METHODS: Data collection was executed in 2014 within a sample of 2216 children in 105 primary schools in Flanders, by means of an oral examination and a validated questionnaire. Intermutual Agency database was consulted to objectively determine individuals' social state and frequency of utilisation of oral healthcare services. Underprivileged children were compared with more fortunate children for their mean DMFt, DMFs, plaque index, care index (C, restorative index (RI), treatment index (TI), knowledge and attitude. Differences in proportions for dichotomous variables (RI100%, TI100% and being a regular dental attender) were analysed. The present study was approved by the Ethics Committee of the University Hospital Ghent (2010/061). All parents signed an informed consent form prior to data collection. All schools received information about the study protocol and agreed to participate. Children requiring dental treatment or periodic recall were referred to the local dentist. RESULTS: Underprivileged children had higher D1MFT (95% CI 0.87 to 1.36), D3MT (95% CI 0.30 to 0.64), plaque scores (95% CI 0.12 to 0.23) and lower care level (p<0.02). In the low-income group, 78.4% was caries-free, compared with 88.4% for the other children. Half of the low-income children could be considered as regular dental attenders, while 12.6% did not have any dental visit during a 5-year period. CONCLUSION: Oral health, oral hygiene, oral healthcare level and dental attendance patterns are negatively affected by children's social class, leading to oral health inequalities in Belgian primary school children.