Displaying publications 1 - 20 of 50 in total

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  1. Yahya NA, Saub R, Nor MM, Yusoff N
    PMID: 29642311
    Dentists can offer their patients who smoke tobacco assistance with smoking cessation. We conducted this study to assess dental patient knowledge about the effects of smoking and perceptions and attitudes regarding the role of dentists in smoking cessation counselling. We conducted this study to inform tobacco cessation programs that could potentially include dentists. We conducted a cross-sectional study using a self-administered questionnaire among 375 patients. The mean age of subjects was 33.4 years; females comprised 51.5%. Participants were divided into 3 groups: those who never smoked (n = 263, 70.7%), smokers (n = 92, 24.7%), and ex-smokers (n = 17, 4.5%). Significantly more participants (p = 0.046) who never smoked (92.9%) knew smoking can cause bad breath than smokers(86.9%). Significantly more participants (p = 0.002) who never smoked (74.8%) knew smoking can cause periodontal disease than smokers (57.6%). Significantly
    more participants (p < 0.001) who never smoked (84.5%) knew smoking can cause
    oral cancer than smokers (66.7%). Significantly more participants (p < 0.001) who never smoked (86.7%) knew smoking can cause lung cancer than smokers (69.7%). Significantly more participants who never smoked (85.5%) felt dentists should be interested in the smoking status of their patients (p = 0.004) than smokers (72.6%). Significantly more participants (p = 0.08) who never smoked (69.6%) stated dentists should give smoking cessation advice than smokers/ex-smokers (59.0%). Smoker/ex-smokers had less knowledge about the effects of smoking on oral and general health than non-smokers. Both smokers/ex-smokers and non-smokers felt dentists should provide smoking cessation advice.
  2. Saub R, Locker D
    Med J Malaysia, 2006 Oct;61(4):438-46.
    PMID: 17243521
    The aim of this paper is to describe the impact of oral conditions on the quality of life of the adult population of Malaysia. The adapted Malaysian Oral Health Impact Profile (L-OHIP-M) questionnaire was used. A total of two hundred and twenty respondents completed the L-OHIP(M). Overall, slightly more than 50% of the sample had at least one impact reported as either "very often" or "often". The younger age group, Indian ethnic and those who had tertiary education reported more impacts. The preliminary results revealed that a substantial proportion of the sample included in this study experienced frequent psychosocial impacts associated with oral conditions.
  3. Saub R, Jaafar N
    Med J Malaysia, 2001 Dec;56(4):401-7.
    PMID: 12014757
    This observational study investigates and describes the oral health beliefs and illness behaviour in the Semai tribe of Orang Asli community. Data was obtained from a "Key informant interview" method i.e. the village Tok Halaq (Traditional healer). Information about common oral diseases and conditions were illustrated with enlarged pictures of dental caries, periodontal disease, oral cancer and cleft. The most common oral problem was toothache. This is treated by self-medication. However if the pain still persist, the Tok Halaq was consulted to start traditional methods. He will identify the cause. If "germs" were thought to be the cause, he will ask the person to see a doctor. Otherwise, he attempts traditional treatment. If the effort failed after a few days, the person will be advised to see a doctor. It appears that the Tok Halaq plays an influential role in prevention, promotion and the healing process in this community. Hence any effort to promote oral health and prevent oral disease must seek their cooperation. Their beliefs on causes of common oral diseases are described in the text.
  4. Abdul Rahim FS, Mohamed AM, Nor MM, Saub R
    Angle Orthod, 2014 Jul;84(4):600-6.
    PMID: 24417495 DOI: 10.2319/062813-480.1
    OBJECTIVE: To determine the prevalence of malocclusion and need for orthodontic treatment among persons with Down Syndrome (DS).

    MATERIALS AND METHODS: Study participants were 113 persons with DS from the selected community-based rehabilitation center who fulfilled the inclusion and exclusion criteria. Ten occlusal characteristics of the Dental Aesthetic Index (DAI) were measured on study models to determine the degree of malocclusion. A single score represented the dentofacial anomalies, determined the level of severity, and determined the need for orthodontic treatment.

    RESULTS: Crowding in the anterior maxillary and mandibular arch was the main malocclusion problems among the subjects with DS. Comparison between age group and genders revealed no significant differences in four categories of orthodontic treatment need (P > .05).

    CONCLUSION: Most of the subjects with DS (94; 83.2%) had severe and very severe malocclusion, which indicated a desirable and mandatory need for orthodontic treatment.

  5. Sulaiman L, Saub R, Baharuddin NA, Safii SH, Gopal Krishna V, Bartold PM, et al.
    Oral Health Prev Dent, 2019;17(4):365-373.
    PMID: 31093611 DOI: 10.3290/j.ohpd.a42502
    PURPOSE: To assess the impact of extent and severity of chronic periodontitis (CP) on oral health-related quality of life (OHRQoL).

    MATERIALS AND METHODS: A cross-sectional comparative study was performed on subjects from multiple dental centres in Malaysia using a questionnaire covering sociodemographics, OHRQoL using the Malaysian Oral Health Impact Profile questionnaire, OHIP-14(M) and self-reported symptoms. Participants with severe CP were age-and gender-matched with periodontally healthy/mild periodontitis (HMP) participants based on inclusion and exclusion criteria. Full mouth periodontal examination was performed on participants. Outcome measures were OHIP-14(M) prevalence of impact and severity of impact scores.

    RESULTS: One hundred and thirty (130) participants comprising 65 severe CP and 65 HMP participants were included in the study. Prevalence of impact on OHRQoL was significantly higher in the severe CP than HMP group, with an odds ratio of 3. Mean OHIP-14(M) score was significantly higher in the severe CP (18.26 ± 10.22) compared to HMP (11.28± 8.09) group. The dimensions of psychological discomfort and functional limitation, and factors such as 'discomfort due to food stuck' and 'felt shy' were impacted more in severe CP compared to HMP group (p < 0.05). When compared with the HMP group, generalised severe CP participants showed higher prevalence of impact on OHRQoL [OR=5] (p < 0.05) compared to localised severe CP [OR=2] (p = 0.05). Participants who had experienced self-reported symptoms had statistically significant impacts on OHRQoL.

    CONCLUSIONS: Severe CP had a greater impact on OHRQoL compared to HMP. Impacts were mainly for functional limitation and psychological discomfort dimensions. When considering extent of disease, the impact on OHRQoL was mostly in generalised severe CP subgroup.

  6. Vaithilingam RD, Safii SH, Baharuddin NA, Karen-Ng LP, Saub R, Ariffin F, et al.
    Oral Dis, 2015 Jan;21(1):e62-9.
    PMID: 24930489 DOI: 10.1111/odi.12267
    Periodontal bio-repositories, which allow banking of clinically validated human data and biological samples, provide an opportunity to derive biomarkers for periodontal diagnosis, prognosis and therapeutic activities which are expected to improve patient management. This article presents the establishing of the Malaysian Periodontal Database and Biobank System (MPDBS) which was initiated in 2011 with the aim to facilitate periodontal research. Partnerships were established with collaborating centres. Policies on specimen access, authorship and acknowledgement policies were agreed upon by all participating centres before the initiation of the periodontal biobank. Ethical approval for the collection of samples and data were obtained from institutional ethics review boards. A broad-based approach for informed consent was used, which covered areas related to quality of life impacts, genetics and molecular aspects of periodontal disease. Sample collection and processing was performed using a standardized protocol. Biobanking resources such as equipment and freezers were shared with the Malaysian Oral Cancer Database and Tissue Bank System (MOCDTBS). In the development of the MPDBS, challenges that were previously faced by the MOCDTBS were considered. Future challenges in terms of ethical and legal issues will be faced when international collaborations necessitate the transportation of specimens across borders.
  7. Batool A, Vaithilingam RD, Mohamad Hassan NH, Safii SH, Saub R
    Medicine (Baltimore), 2023 Oct 13;102(41):e35340.
    PMID: 37832126 DOI: 10.1097/MD.0000000000035340
    BACKGROUND: Matrix metalloproteinases (MMPs) play a crucial role in the pathogenesis of several chronic diseases including rheumatoid arthritis (RA) and periodontitis (PD). RA patients with periodontitis (RA-PD) are associated with elevated inflammatory burden due to increased production of proinflammatory cytokines. Controlling upregulated MMPs activity in these patients may have potential therapeutic effects. Therefore, aim of this study is to address the focused question: "Do RA subjects with concurrent PD have different levels of MMPs in comparison to RA alone, PD alone and HC subjects?"

    METHODS: The systematic review was performed following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. A search from 4 electronic databases (EMBASE, Medline, Web of Science, and Cochrane library) and manual search was performed from inception to July 2023. Quality assessment of each article was done using Newcastle-Ottawa Scale. Meta-analyses derived results were summarized as standardized mean difference (SMD) with 95% confidence intervals.

    RESULTS: A total of 879 articles were extracted. Following screening and full text assessment, 9 studies were included. MMP-1, MMP-3, MMP-8, MMP-9, and MMP-13 were consistently elevated in RA-PD subjects. MMP-8 levels were found to be higher in RA-PD subjects compared with RA alone, PD alone, and HC in 3 studies reporting GCF levels (SMD = 1.2; Z = 2.07; P = .04) and 2 studies reporting serum levels (SMD = 0.87; Z = 4.53; P < .00001).

    CONCLUSION: RA-PD group showed significantly higher MMP levels in their serum and GCF compared with HC, RA, and PD alone individuals. MMP-8 may serve as a reliable biomarker in the diagnosis and management of RA-PD subjects.

  8. Samer MS, Faraz Q, Al-Dubai SAR, Vohra F, Abdullah H, Taiyeb-Ali TB, et al.
    Med Princ Pract, 2017;26(5):470-479.
    PMID: 28965115 DOI: 10.1159/000481864
    OBJECTIVES: The aim of this study was to determine the clinical outcomes and predictors of satisfaction in patients with lithium disilicate (LD) ceramic crowns.

    SUBJECTS AND METHODS: Clinical outcomes were assessed in 47 patients with 88 LD crowns using modified United States Public Health Service (USPHS) evaluation criteria and survival rates. The questionnaire for predictors included 3 aspects: (a) sociodemographic characteristics, (b) oral health habits (tooth brushing frequency, flossing frequency, and dental visits), and (c) satisfaction of the restorations (aesthetics, function, fit, cleansability, and chewing ability of the crowns, and overall satisfaction). Frequency distributions were computed using univariate and multivariate analysis. The Student t test and analysis of variance (ANOVA) were used to compare means across variables. Correlation analysis was done to assess the association between continuous variables.

    RESULTS: The age of crowns was 34.7 ± 9.7 months. The survival rate was 96.6% at 35.9 ± 9.2 months. There was a significant association between successful crown function and oral hygiene measures: tooth brushing (p˂ 0.001), dental visits (p = 0.006), and flossing (p = 0.009). A strong negative correlation was observed between aesthetic satisfaction (r = -0.717, p˂ 0.001) and chewing ability (r = -0.639, p˂ 0.001) with crown age. The linear regression model was significant for all predictors (p < 0.05) except overall satisfaction (p > 0.05).

    CONCLUSION: The LD crowns had long survival rates of 96.6% up to 35.9 ± 9.2 months and provided satisfactory clinical performance (low risk of failure). Oral hygiene habits such as brushing, flossing, and regular dental visits influenced patient satisfaction with LD crowns.

  9. Nordin NN, Vaithilingam RD, Saub R, Nasir NH, Mohd Asari AS, Bashah B, et al.
    Malays Fam Physician, 2021 Nov 30;16(3):44-55.
    PMID: 34938392 DOI: 10.51866/oa1131
    Introduction: The bi-directional relationship between periodontitis (PD) and diabetes mellitus (DM) has been confirmed. Medical practitioners (MPs) serve an important role in relaying this information to patients. This study aimed to investigate the awareness, knowledge, attitudes and practices (KAP) in the management of DM patients with PD in primary care clinics under the Ministry of Health (MOH) of Malaysia.

    Materials and Methods: A self-administered questionnaire on KAP in the management of DM patients with PD was posted to 725 medical officers (MOs) and family medicine specialists (FMSs) in MOH clinics in Kedah, Terengganu, Johor and Negeri Sembilan. Collected data were tabulated and analysed using descriptive and regression analyses (simple and multiple). Statistical significance was defined as p < 0.05.

    Results: A total of 549 MPs responded. The majority of MPs were MOs (92.6%) and female (75.8%). FMSs had a greater awareness of PD when compared to MOs (p = 0.002). All MPs had good knowledge, except for the incorrect notion that excessive sugar causes PD (94.3%). Overall, FMSs had better knowledge when compared to MOs (p=0.026). The majority of MPs agreed that 'they should update their knowledge on the association between systemic disease and PD' (89.6%) and claimed that 'it was not their responsibility to examine DM patients for PD' (83.1%). Most MPs did not enquire or examine for PD in their DM patients. More FMSs (67.5%) referred patients to dentists compared to MOs (31.6%).

    Conclusion: Most MPs have sufficient knowledge on PD, but a negative attitude in the management of PD in DM patients. The reasons for not referring included workload and patients refusing referral.

  10. Nor Azman, A.R., Saub, R., Raja Latifah, R.J.
    Malaysian Dental Journal, 2015;37(1):24-29.
    MyJurnal
    This study was conducted on Royal Malaysian Navy submariners who were having training in France. It was designed to compare the oral health experiences and practices while under water and on land. Methods Eightysix Royal Malaysian Navy (RMN) submariners, who had undergone at least one cycle (288 hours) of under water training, were selected to participate in a self-administered questionnaire survey. Results Seven percent of the respondents reported oro-facial pain and discomfort; 9.3% reported bleeding gums and 12.8% experienced halitosis while under water. Of those experience oral problems, 82% reported disruption of their daily activities while under water. The study showed that 82.5% of them brush their teeth at least twice a day and 94.2% rinse after meals when there were under water. Meanwhile studies on land showed that 90.7% of them brush their teeth at least twice a day and 96.5% rinse after meals. Flossing was not practiced by most of the respondents. Conclusion It is concluded that brushing and rinsing are practiced regularly by submariners regardless whether they are on land or under water but flossing is not a common practice both on land and under water. Dental emergencies, such as toothache, TMJ pain and discomfort do occur during submarine operations and disrupt their daily activities. This might poses a threat to submarine operations.
  11. Othman SA, Mansor N, Saub R
    Korean J Orthod, 2014 Jul;44(4):168-76.
    PMID: 25133131 DOI: 10.4041/kjod.2014.44.4.168
    The aim of this randomized controlled clinical trial was to compare oral health-related quality of life (OHRQoL) of patients treated with conventional, active self-ligating (ASL), and passive self-ligating (PSL) brackets in different therapeutic phases.
  12. Masood M, Masood Y, Saub R, Newton JT
    J Public Health Dent, 2014;74(1):13-20.
    PMID: 22994869 DOI: 10.1111/j.1752-7325.2012.00374.x
    Demand and use for oral health-related quality of life (OHRQoL) instruments have increased in recent years in both research and clinical settings. These instruments can be used to measure patient's health status or detect changes in a patient's health status in response to an intervention or changes in disease trajectory. Ensuring universal acceptance of these measures requires easy interpretation of its scores for clinicians, researchers, and patients. The most important way of describing and interpreting this significance of changes in OHRQoL is through the establishment of minimal important difference (MID). The minimally important difference represents the smallest improvement considered worthwhile by a patient. A comprehensive search of published literature identified only 12 published articles on establishment of MID for OHRQoL measures. This scarcity of published studies on MID encourages the need of appropriate interpretation and describing patient satisfaction in reference to that treatment using MID. Anchor- and distribution-based methods are the two general approaches that have been proposed and recommended to interpret differences or changes in OHRQoL. Both of these methods of determining the MID have specific shortcomings; therefore, it is proposed to adopt triangulation approaches in which the methods are combined. The objective of this review is to summarize the need for, importance of, and recommendations for methods of establishing MID for OHRQoL measures.
  13. Mansor N, Saub R, Othman SA
    J Orthod Sci, 2012 Oct;1(4):98-102.
    PMID: 24987635 DOI: 10.4103/2278-0203.105880
    The objective of this study was to assess changes in the oral health-related quality of life (OHRQoL) among patients wearing fixed orthodontic appliances 24 h after insertion.
  14. Khoo SP, Primasari A, Saub R
    J Oral Sci, 2001 Sep;43(3):151-7.
    PMID: 11732734
    There is presently no line of distinction between oral lichen planus and other oral lichenoid lesions. The aim of this study is to determine using histomorphometry, the differences between these lesions. Paraffin sections from 7 normal buccal epithelium, 19 oral lichen planus (LP), 14 oral lichenoid lesions (LL) and 7 discoid lupus erythematosus-like lesions (DLE-ll) were selected. The nuclear volume (V(N)) and cellular-volume (V(CELL)) of the epithelium were assessed using an image analyser. The V(N) and V(CELL), derived for both basal and spinal strata in LP and DLE-ll were 2.3 times more than that of normal tissues. There was a significant difference between LP and LL (P < 0.005) and between LL and DLE-ll (P < 0.001), but not between LP and DLE-ll. In conclusion, there appears to be a difference between LP, LL and DLE-ll and V(N) and V(CELL) may serve as potential discriminators between these groups of lesions.
  15. Akram Z, Baharuddin NA, Vaithilingam RD, Rahim ZH, Chinna K, Krishna VG, et al.
    J Oral Sci, 2017 Mar 31;59(1):93-102.
    PMID: 28049964 DOI: 10.2334/josnusd.16-0127
    This study investigated changes in periodontal outcomes after nonsurgical periodontal treatment (NSPT) and evaluated associations of change in salivary resistin level with periodontal outcomes in obese Malaysians with chronic periodontitis. Sixty-two obese adults with chronic periodontitis were randomly divided into a test group (n = 31), which received NSPT, and a control group (n = 31), which received no treatment. Plaque score (PS), gingival bleeding index (GBI), probing pocket depth (PPD), and clinical attachment loss (CAL) were measured at baseline and at 6 and 12 weeks after NSPT. Salivary resistin levels were evaluated by using an enzyme-linked immunosorbent assay. PS was significantly lower in patients who received NSPT than in the control group at 6 and 12 weeks (P < 0.05). In the NSPT group the percentages of sites with shallow and moderate pockets decreased significantly, but there was no significant change in deep pockets. Resistin levels significantly decreased after NSPT (P < 0.05). Change in salivary resistin level was not significantly associated with periodontal outcomes. In obese Malaysians, NSPT significantly improved PS and GBI, and improved PPD and CAL for shallow and moderately deep pockets but not for deep pockets. Salivary resistin level was not associated with improvement in either periodontal variable.
  16. Mohd Nor NA, Repen MC, Zakaria Z, Ab-Murat N, Saub R, Abdul Razak I
    MyJurnal
    This study assesses dental students’ and patients’ perceptions on the role of dental students as smoking cessation counsellors as well as the patient’s quit rate at the University of XX. Materials and methods: Self-administered questionnaires were distributed to all senior dental students (n=154) in XX University and telephone call interviews were conducted on their patients (n=169) who received smoking cessation counselling from September 2010 to June 2013. Results: Response rates for dental students and patients were 68.2% and 67.3% respectively. Most of the dental students in this study were females (72.3%) whereas the majority of patients were males (97.6%). An average of six months follow up indicated that 22.5% of patients had quit smoking, 65.3% reduced the number of cigarettes smoked and 6.5% had relapsed. About a third of patients surveyed (33.1%) believed that smoking cessation counselling was extremely helpful compared to what students perceived (5.7%, p
  17. Hamzah AM, Saub R, Marhazlinda J
    Healthcare (Basel), 2021 Dec 02;9(12).
    PMID: 34946395 DOI: 10.3390/healthcare9121669
    The WHO recommended pictorial health warnings (PHWs) on cigarette packs in 2003 to educate and warn the public of smoking effects. Malaysia too has implemented this policy since 2009. This study explored the public's understanding of the gazetted PHWs depicted on cigarette packs available in Malaysia. A qualitative study using four focus group discussions (FGDs) was conducted among smokers and non-smokers aged 18-40 in Malacca, Peninsular Malaysia. Thematic analyses were performed using the Atlas Ti version 8.0 software. Six themes have emerged reflecting the public's understanding of the existing PHWs in Malaysia, namely, (i) awareness and exposures, (ii) recall and attention, (iii) perceived goals, (iv) perceived target groups, (v) attitude in understanding, and (vi) knowledge and meaning of PHWs. All participants were aware of the PHWs depicted on legal cigarettes but not seen on most illicit cigarettes. PHWs were perceived to give awareness and warning about the smoking effects targeting smokers and non-smokers. Participants understood the lung and oral health-related images easily than other body parts such as gangrene foot, miscarriages, etc. Besides enforcement on illicit cigarettes without PHWs, policymakers or relevant authorities should emphasize creating relevant and clear pictorial messages in educating the public to avoid confusion affecting the public's understanding of the PHWs.
  18. Basher SS, Saub R, Vaithilingam RD, Safii SH, Daher AM, Al-Bayaty FH, et al.
    Health Qual Life Outcomes, 2017 Nov 21;15(1):225.
    PMID: 29157276 DOI: 10.1186/s12955-017-0793-7
    BACKGROUND: Oral Health Related Quality of Life (OHRQoL) is an important measure of disease and intervention outcomes. Chronic periodontitis (CP) is an inflammatory condition that is associated with obesity and adversely affects OHRQoL. Obese patients with CP incur a double burden of disease. In this article we aimed to explore the effect of Non-Surgical Periodontal Therapy (NSPT) on OHRQoL among obese participants with chronic periodontitis.

    MATERIALS AND METHODS: This was a randomised control clinical trial at the Faculty of Dentistry, University of Malaya. A total of 66 obese patients with chronic periodontitis were randomly allocated into the treatment group (n=33) who received NSPT, while the control group (n=33) received no treatment. Four participants (2 from each group) were non-contactable 12 weeks post intervention. Therefore, their data were removed from the final analysis. The protocol involved questionnaires (characteristics and OHRQoL (Oral Health Impact Profile-14; OHIP-14)) and a clinical examination.

    RESULTS: The OHIP prevalence of impact (PI), overall mean OHIP severity score (SS) and mean OHIP Extent of Impact (EI) at baseline and at the 12-week follow up were almost similar between the two groups and statistically not significant at (p=0.618), (p=0.573), and (p=0.915), respectively. However, in a within-group comparison, OHIP PI, OHIP SS, and OHIP EI showed a significant improvement for both treatment and control groups and the p values were ((0.002), (0.008) for PI), ((0.006) and (0.004) for SS) and ((0.006) and (0.002) for EI) in-treatment and control groups, respectively.

    CONCLUSION: NSPT did not significantly affect the OHRQoL among those obese with CP. Regardless, NSPT, functional limitation and psychological discomfort domains had significantly improved.

    TRIAL REGISTRATION: ( NCT02508415 ). Retrospectively registered on 2nd of April 2015.

  19. Othman AA, Yusof Z, Saub R
    Gerodontology, 2014 Jun;31(2):136-44.
    PMID: 23173906 DOI: 10.1111/ger.12023
    To assess Malaysian government dentists' experience, willingness and barriers in providing domiciliary care for elderly people.
  20. Mohd Tahir N, Wan Hassan WN, Saub R
    Eur J Orthod, 2019 08 08;41(4):370-380.
    PMID: 30321319 DOI: 10.1093/ejo/cjy063
    OBJECTIVES: The aim of this study was to compare vacuum-formed thermoplastic retainers (VFRs) constructed on stone models (VFR-CV) and those constructed on three-dimensional (3D) printed models (VFR-3D) based on patients' perspective and post-treatment stability.

    STUDY DESIGN: The research was designed as a crossover, randomized control trial.

    MATERIALS AND METHODS: Subjects comprised patients receiving fixed appliances at a teaching institution and indicated for VFRs. Post-treatment stone models were scanned with a structured-light scanner. A fused deposition modelling machine was used to construct acrylonitrile-butadiene-styrene (ABS)-based replicas from the 3D scanned images. VFRs were fabricated on the original stone and printed models. Analysis comprised independent t-tests and repeated measures analysis of variance.

    RANDOMIZATION: Subjects were allocated to two groups using Latin squares methods and simple randomization. A week after debond, subjects received either VFR-CV first (group A) or VFR-3D first (group B) for 3 months, then the interventions were crossed over for another 3 months.

    BLINDING: In this single-blinded study, subjects were assigned a blinding code for data entry; data were analysed by a third party.

    OUTCOME MEASURES: The primary outcome measured was oral health-related quality of life (OHRQoL) based on Oral Health Impact Profile-14 (OHIP-14). Secondary outcome was post-treatment stability measured using Little's Irregularity Index (LII).

    RESULTS: A total of 30 subjects (15 in each group) were recruited but 3 dropped out. Analysis included 13 subjects from group A and 14 subjects from group B. Group A showed an increase in LII (P < 0.05) after wearing VFR-CV and VFR-3D, whereas group B had no significant increase in LII after wearing both VFRs. Both groups reported significant improvement in OHRQoL after the first intervention but no significant differences after the second intervention. LII changes and OHIP-14 scores at T2 and T3 between groups, and overall between the retainers were not significantly different. No harm was reported during the study.

    CONCLUSION: VFRs made on ABS-based 3D printed models showed no differences in terms of patients' OHRQoL and stability compared with conventionally made retainers.

    REGISTRATION: NCT02866617 (ClinicalTrials.gov).

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