Introduction
Recent computer‐guided dynamic navigation systems promise a novel training approach for implant surgery. This study aimed to examine learning progress in placement of dental implants ...among dental students using dynamic navigation on a simulation model.
Materials and Methods
Senior students with no implant placement experience were randomly assigned five implant placement attempts involving either three maxillary or four mandibular implants distributed in the anterior/posterior, and left/right segments. Implant placement was planned using a Navident Dynamic Guidance system. Surgical time was recorded. Horizontal, vertical and angulation discrepancies between the planned and placed implant positions were measured using superimposed CBCT scans. Data were analysed with repeated measures regression with Tukey's adjusted pairwise comparisons (α = 0.05).
Results
Fourteen students participated, with a mean age of 26.1 years and equal males and females. Mean time for implant placement was associated with attempt number (P < 0.001), implant site (P = 0.010) and marginally related to gender (P = 0.061). Students had a significant reduction in time from their first attempt to their second (10.6 vs 7.6 minutes; adjusted P < 0.001) then plateaued. Overall 3D angulation (P < 0.001) and 2D vertical apex deviation (P = 0.014) improved with each attempt, but changes in lateral 2D (P = 0.513) and overall 3D apex deviations (P = 0.784) were not statistically significant. Implant sites were associated with lateral 2D, 2D vertical and overall 3D apex deviation (P < 0.001).
Discussion
Males were marginally faster than females, had slightly lower overall 3D angulation, and reported higher proficiency with video games. Novice operators improved significantly in speed and angulation deviation within the first three attempts of placing implants using dynamic navigation.
Conclusion
Computer‐aided dynamic implant navigation systems can improve implant surgical training in novice population.
Purpose
The purpose of this systematic scoping review was to identify, analyze, and compare existing generic oral health models in English scientific dental literature.
Methods
We conducted a ...literature search in five databases, Ovid Medline, Embase, PsycINFO, Cochrane, and Web of Science, using pre-determined inclusion and exclusion criteria and calculated the interrater agreement coefficient “prevalence-adjusted bias-adjusted kappa” (PABAK). We identified, reviewed, and displayed the generic oral health models in review tables.
Results
Of the 3498 references identified, 13 oral health models from seven countries met the inclusion criteria. The interrater agreement coefficient resulted in a ‘‘substantial agreement’’ (PABAK = 0.80). Ten of the 13 (77%) generic oral health models were developed in English-speaking countries. All models were multidimensional and contained from two to 12 dimensions. Four models presented linear conception, and we observed non-linear conception in six models. Authors presented the unidirectional or reciprocal relations between dimensions in six models, and five models, respectively. Two models did not show models’ relation or conception. Researchers used only experts (
N
= 1), literature (
N
= 2), dental patients (
N
= 2), or general population subjects (
N
= 3), or a combination of these sources (
N
= 5) for development of their generic oral health models. Statistical analyses supported the majority of the models (
N
= 8).
Conclusions
The identified 13 oral health models vary substantially in their characteristics. This systematic scoping review of generic oral health models provides a toolbox, from which dental researchers can choose the theoretical model they consider fit best their oral health concept they want to investigate. Ideally, the international dental community will come soon to an agreement of accepting one oral health model, and this will provide an opportunity for comparison of outcomes across studies and populations and thus elevate dentistry to a higher evidence-based level.
doi: 10.1111/j.1741‐2358.2011.00592.x
A 3‐year longitudinal study of quality‐of‐life outcomes of elderly patients with implant‐ and tooth‐supported fixed partial dentures in posterior dental ...regions
Background: Clinical studies have mainly been focused on oral health‐related quality‐of‐life (OHRQoL) outcomes of removable dentures.
Objective: To evaluate therapy of elderly patients with implant‐supported fixed partial dentures (IFPD) and tooth‐supported fixed partial dentures (FPD) in the posterior dental regions.
Patients and methods: The OHIP49 was used to measure OHRQoL in 64 patients with IFPD and 38 patients with FPD, before, 3 weeks and 3 years after rehabilitation. A control group (CG) consisted of 62 individuals.
Results: The Oral Health Impact Profile questionnaire (OHIP) follow‐up scores of the patients with FPD and the patients with IFPD were significantly smaller in comparison with the baseline scores (p < 0.01). The OHIP scores were further reduced at the 3‐year follow‐up. The patients with IFPD had significantly higher scores than the patients with FPD and the CG at the baseline and at the follow‐ups. In the patients with FPD, both age groups (≤60 and >60) showed equal improvement of the OHRQoL. In the IFPD group, patients older than 60 years showed better improvement (p < 0.05). There were no significant differences dependent on gender and antagonistic teeth (p > 0.05).
Conclusion: The FPD and the IFPD treatment showed significant improvement of OHRQoL. The FPD treatment improved OHRQoL equally in both age groups, while the IFPD treatment improved OHRQoL better in older patients.
Patient-reported outcomes (PROs) are used beside disease-oriented outcomes (eg, number of teeth, clinical attachment level) to better capture the impact of diseases or interventions. To assess PROs ...for dental patients (dPROs), dental PRO measures (dPROMs) are applied. The aim of this systematic review was to identify generic dPROMs for adult patients and the dPROs.
This systematic review searched the MEDLINE, Embase, and PsycINFO databases along with hand searching, through December 2017, to identify English-language, multi-item dPROMs that are oral health generic, that is, they are applicable to a broad range of adult patients.
We identified 20 questionnaires that contained 36 unique dPROs. They were measured by 53 dPROMs. dPRO names (N = 36) suggested they could be grouped into four dPRO categories: (1) Oral Function (N = 11), Orofacial Pain (N = 7), Orofacial Appearance (N = 3), and Psychosocial Impact (N = 14), as well as an additional dPRO that represented perceived oral health in general. Only eight questionnaires had a specific recall or reference period. dPROM's score dimensionality was only investigated in 13 of the 20 questionnaires.
The identified 36 dPROs represent the major aspects of an adult dental patient's oral health experience; however, four major dPRO categories, that is, Oral Function, Orofacial Pain, Orofacial Appearance, and Psychosocial Impact, summarize how patients are impacted. If multi-item, oral health–generic dPROMs are to be used to measure patients' suffering, the 53 dPROMs represent current available tools. Limitations of the majority of these dPROMs include incomplete knowledge about their dimensionality, which affects their validity, and an unspecified recall period, which reduces their clinical applicability.
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A desideratum of oral health-related quality of life (OHRQoL) instruments – such as the Oral Health Impact Profile (OHIP) – is that they accurately reflect the structure of the measured construct(s). ...With this goal in mind, the Dimensions of Oral Health-Related Quality of Life (DOQ) Project was proposed to investigate the number and nature of OHRQoL dimensions measured by OHIP. In this report, we describe our aggregate data set for the factor analyses in the project, which consists of responses to the 49-item OHIP from general population subjects and prosthodontics patients from 6 countries, including a large age range of adult subjects and both genders.
The DOQ Project's aggregate data set combines data from 35 individual studies conducted in Croatia, Germany, Hungary, Japan, Slovenia, and Sweden.
The combined data set includes 10778 OHIPs from 9348 individuals (N=6349 general population subjects, N=2999 prosthodontic patients). To elucidate the OHIP latent structure, the aggregated data were split into a Learning Sample (N=5173) for exploratory analyses and a Validation Sample (N=5022) for confirmatory analyses. Additional data (N=583) were assigned to a third data set.
The Dimensions of Oral Health-Related Quality of Life Project contains a large amount of international data and is representative of populations where OHIP is intended to be used. It is well-suited to assess the dimensionality of the questionnaire.
To validate the Slovenian version (SOC-13-SVN) of Sense of Coherence 13-item instrument (SOC-13) in Slovenian multiple sclerosis (MS) patients.
A consecutive 134 Slovenian MS patients were enrolled ...in a cross-sectional study in 2013. The reliability of the SOC-13-SVN was assessed for internal consistency by Cronbach's alpha coefficient (α), dimensionality by the confirmatory factor analysis (CFA), and criterion validity by Pearson correlation coefficient (r) between SOC-13-SVN global score and MSQOL-54 composite scores - Mental Health Composite score (MHC) and Physical Health Composite score (PHC).
For the SOC-13-SVN instrument as a whole, internal consistency was high (α
=0.88) while it was low for three subscales (α
=0.79; α
=0.66; α
=0.69). The results of the CFA confirmed a three-factor structure with good fit (RMSEA=0.059, CFI=0.953, SRMR=0.065), however, the correlations between the factors were very high (r
=0.938; r
=0.811; r
=0.930). The criterion validity analysis showed a moderate positive strength of relationship between SOC-13-SVN global score and both MSQOL-54 composite scores (MHC: r=0.597, p<0.001; PHC: r=0.437, p<0.001).
Analysis of some psychometric properties confirmed that this instrument is a reliable and valid tool for use in Slovenian MS patients. Despite the three-dimensional structure of the instrument, the use of the global summary score is encouraged due to the low reliability of the subscale scores and high correlations between them.
To cross-culturally adapt and validate Multiple Sclerosis Quality of Life-54 (MSQOL-54) instrument.
The study which enrolled 134 Slovenian multiple sclerosis (MS) patients was conducted from March to ...December 2013. The internal consistency of the MSQOL-54 instrument was evaluated by Cronbach's alpha coefficient (α), and its dimensionality assessed by the principal component analysis (PCA).
The whole instrument had high internal consistency (α=0.88), as well as the majority of its twelve subscales (α=0.83-0.94). The results of the PCA showed two components with eigenvalue greater than 1, explaining 59.4% of the cumulative variance. Further results indicated good construct validity of the instrument with the physical health-related-quality-of-life subscales loading highly on the physical component, and mental health-related-quality-of-life subscales loading highly on the mental component.
The Slovenian version of the MSQOL-54 instrument proved to be an internally consistent and accurate tool, well accepted by the Slovenian MS patients. The adequate psychometric properties warrant the scientifically sound version of the MSQOL-54 instrument, which is from now on at disposal to all health professionals dealing with MS patients in Slovenia.
To prospectively assess self-perceived chewing function (CF) and oral health-related quality of life (OHRQoL) in geriatric patients after receiving three different treatment modalities in the ...mandible: removable partial denture (CD-RPD), complete denture (CDs), or complete overdenture supported by mini dental implants (CD-MDI). At baseline, all patients had mobile anterior teeth (1 mm or >) and missing posterior teeth in the mandible. Patients were completely edentulous in the maxilla. After treatment, patients were recalled at the 3-month and the 2-year post-treatment period.
A total of 176 patients participated (CD group, n=68; CD-RPD group, n=58; CD-MDI group, n=50). Self-reported CF was assessed using the Chewing Function questionnaire (CFQ), The OHRQoL was evaluated using the OHIP14 questionnaire, which the patients completed 1. before treatment, 2. three months after treatment, and 3. at the 2-year post-treatment stage.
The OHRQoL and the self-perceived CF significantly improved in all groups after treatment (p<0.01). The highest improvement of a CF was recorded in the CD-MDI group. The OHRQoL was significantly higher in the CD-MDI group in comparison to the CDs group after treatment (p<0.01). At the 2-year post-treatment stage, self-perceived CF significantly further improved in the CD-MDI group, while it worsened in the CD and the CD-RPD groups (p<0.01). The same pattern was recorded for the OHIP14 summary scores. The highest amount of denture repairs and adjustments was recorded in the CD-RPD group, although maintenance was also demanding in the CD-MDI group.
Within the limitations of this study, rehabilitation with mandibular MDI retained overdenture can be considered as preferred treatment with the constant improvement of OHRQoL and a chewing function in comparison to mandibular CD or mandibular RPD option in patients with mobile anterior mandibular teeth.
To compare the frequency of patients' oral health problems and prevention needs among Slovenian and international dentists with the aim to validate the four oral health-related quality of life ...(OHRQoL) dimensions across six clinical dental fields in all World Health Organization (WHO) regions.
An anonymous electronic survey in the English language was designed using Qualtrics software. A probability sampling for Slovenia and a convenience sampling strategy for dentist recruitment was applied for 31 countries. Dentists engaged in six dental fields were asked to categorize their patients' oral health problems and prevention needs into the four OHRQoL dimensions (Oral Function, Orofacial Pain, Orofacial Appearance, and Psychosocial Impact). Proportions of patients' problems and prevention needs were calculated together with the significance of Slovenian and international dentists' differences based on dental fields and WHO regions.
Dentists (n=1,580) from 32 countries completed the survey. There were 223 Slovenian dentists (females: 68%) with a mean age (SD) of 41 (10.6) years and 1,358 international dentists (females: 51%) with a mean age (SD) of 38 (10.4). Pain-related problems and prevention needs were the most prevalent among all six dental fields reported by dentists; Slovenian (37%) and 31 countries (45%). According to Cohen, differences between Slovenia, the broader European Region, and 31 countries were considered non-significant (<0.1).
According to the dentists' responses, the frequency of patients' oral health problems and prevention needs are proportionate between Slovenia and 31 countries, regionally and globally. The four OHRQoL dimensions can be considered universal across all dental fields.
Nonthermal atmospheric or low-pressure plasma (NTP) can improve the surface characteristics of dental materials without affecting their bulk properties. This study aimed to systematically review the ...available scientific evidence on the effectiveness of using NTP for the surface treatment of etchable, silica-based dental ceramics before cementation, and elucidate its potential to replace the hazardous and technically demanding protocol of hydrofluoric acid (HF) etching.
A valid search query was developed with the help of PubMed's Medical Subject Headings (MeSH) vocabulary thesaurus and translated to three electronic databases: PubMed, Web of Science, and Scopus. The methodological quality of the studies was assessed according to an adapted version of the Methodological Index for Non-Randomized Studies (MINORS).
Thirteen in vitro study reports published between 2008 and 2023 were selected for the qualitative and quantitative data synthesis. The implemented methodologies were diverse, comprising 19 different plasma treatment protocols with various device settings. Argon, helium, oxygen, or atmospheric air plasma may significantly increase the wettability and roughness of silicate ceramics by plasma cleaning, etching, and activation, but the treatment generally results in inferior bond strength values after cementation compared to those achieved with HF etching. The technically demanding protocol of plasma-enhanced chemical vapor deposition was employed more commonly, in which the surface deposition of hexamethyl disiloxane with subsequent oxygen plasma activation proved the most promising, yielding bond strengths comparable to those of the positive control. Lack of power analysis, missing adequate control, absence of examiner blinding, and non-performance of specimen aging were common methodological frailties that contributed most to the increase in bias risk (mean MINORS score 15.3 ± 1.1).
NTP can potentially improve the adhesive surface characteristics of dental silicate ceramics in laboratory conditions, but the conventional protocol of HF etching still performs better in terms of the resin-ceramic bond strength and longevity. More preclinical research is needed to determine the optimal NTP treatment settings and assess the aging of plasma-treated ceramic surfaces in atmospheric conditions.
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