Electric Toothbrush Research Articles

Efficacy of Oral Hygiene Aids in Gingivitis Management: A Comparative Study of Manual and Electric Toothbrushes, Dental Floss, and Mouthwash

ABSTRACT Background: Gingivitis is a prevalent oral health issue characterized by inflammation of the gums, often resulting from inadequate plaque removal. Materials and Methods: A randomized controlled trial was conducted with 120 participants diagnosed with gingivitis, aged 18 to 65 years. Participants were divided into four groups: Group A used a manual toothbrush, Group B used an electric toothbrush, Group C used dental floss in addition to manual brushing, and Group D used mouthwash in addition to manual brushing. The study duration was eight weeks, with gingival index (GI) scores recorded at baseline, four weeks, and eight weeks. Plaque index (PI) and bleeding on probing (BOP) were also assessed as secondary outcomes. Results: At the end of eight weeks, Group B (electric toothbrush) showed the most significant reduction in gingival index scores (mean reduction: 1.2, P < 0.01), followed by Group D (mouthwash) with a mean reduction of 1.0 (P < 0.05). Group C (dental floss) exhibited a moderate reduction (mean reduction: 0.8, P < 0.05), while Group A (manual toothbrush) had the least improvement (mean reduction: 0.5, P = 0.08). Plaque index and bleeding on probing results followed a similar trend, with the electric toothbrush group demonstrating superior outcomes. Conclusion: The study concludes that electric toothbrushes are more effective in managing gingivitis compared to manual toothbrushes, dental floss, and mouthwash.

Comparison Between Powered and Manual Toothbrushes Effectiveness for Maintaining an Optimal Oral Health Status.

This integrative literature review evaluates the effectiveness of power toothbrushes (PTBs) compared to manual toothbrushes (MTBs) across various populations, focusing on plaque removal, gingival health, calculus reduction, and stain removal. PTBs equipped with advanced technologies such as oscillating-rotating and high-frequency sonic mechanisms have been examined for their potential to enhance oral hygiene. Special attention is given to vulnerable groups, including the elderly and individuals with intellectual disabilities, to assess how PTBs meet their specific oral health needs. A comprehensive literature search was conducted in databases including PubMed, Cochrane Library, Embase, and Google Scholar using keywords such as "power toothbrush", "electric toothbrush", "manual toothbrush", "plaque removal", "gingivitis", "calculus", "dental stains", "oral hygiene", "elderly", and "intellectual disabilities". Studies published between 2000 and 2024 were selected based on their relevance to the PTB and MTB comparison, with an emphasis on outcomes related to oral hygiene efficacy. As this review is narrative rather than systematic, it focuses on synthesizing existing knowledge without applying strict inclusion or exclusion criteria. The results indicate that PTBs generally outperform MTBs in reducing plaque, gingivitis, and stains, though the benefits for special populations are less pronounced but still significant. However, practical issues such as user experience and mechanical reliability of PTBs warrant further investigation. In conclusion, this review enhances the understanding of PTB effectiveness, guides consumer choices, and informs future technological advancements in dental care practices.

Effect of Electric Toothbrushes on the Roughness of Composites

Effect of Electric Toothbrushes on the Roughness of Composites

Research progress of piezoelectric materials in protecting oral health and treating oral diseases: a mini-review.

Piezoelectric materials, as a class of materials capable of generating electrical charges under mechanical vibration, have special piezoelectric effects and have been widely applied in various disease treatment fields. People generate vibrations in the oral cavity during daily activities such as brushing teeth, using electric toothbrushes, chewing, and speaking. These natural vibrations (or external ultrasound) provide ideal conditions for activating piezoelectric materials, leading to their high potential applications in protecting oral health and treating oral diseases. Based on this, this review reports on the research progress and trends of piezoelectric materials in the protection of oral health and the treatment of oral diseases in the past 5years, and discusses its treatment mechanism, challenges and shortcomings, aiming to provide theoretical basis and new ideas for the future application of piezoelectric materials in the field of oral cavity. Finally, a brief outlook is provided, suggesting that the potential of piezoelectric materials may enable them to quickly move towards real clinical applications.

Comparison between manual vs electric powered toothbrush by using the PCR index in paediatric dentistry.

This present study has two primary objectives: firstly, to compare the effectiveness of an electric toothbrush versus a manual toothbrush in biofilm removal; secondarily, to assess the effectiveness of individualised instructions provided by the operator. Fifty-five paediatric patients were enrolled in the study. Data collection involved three main steps: 1) Pre-brushing PCR index collection; 2) Post-brushing PCR index collection; 3) Post-brushing PCR index collection after providing individual instructions. The tooth surfaces were colored with a liquid plaque detector. To assess whether there was a statistically significant difference in plaque values before and after brushing, a Wilcoxon signed-rank test was conducted. The Wilcoxon test with continuity correction was performed to compare the two brushing methods. It is possible to confirm a correlation between instructions provided by the operator and lower plaque index. As regards the comparison between manual and electric toothbrush, in our study one tool did not emerge as more effective than the other.

A study on the association between electric toothbrush use on calculus formation and periodontal tissue condition in Korean adults: 7th Korea National Health and Nutrition Examination Survey

Objectives: This study aimed to assess the relationship between electric toothbrush use and the presence of community periodontal index (CPI) code calculus among Korean adults. Methods: Data from the 7th Korea National Health and Nutrition Examination Survey were analyzed. Multiple logistic regression analysis with a complex sampling design was conducted, adjusting for general characteristic factors. Analyses were performed using SPSS Statistics 29.0. Results: Among the participants, the prevalence of electric toothbrush users was 5.3%. Within this group, 4.7% had periodontal disease, whereas 5.9% did not (p=0.025). Even after adjusting for general characteristics factors in model Ⅱ of electric toothbrush use, the odds ratio remained statistically significant at 0.791 (95% CI: 0.631-0.992) in all cases. Conclusions: Electric toothbrush use appears to be associated with potential benefits in managing the CPI code calculus distribution; however, evidence supporting this notion remains insufficient. The study findings suggest that these results could be a basis for future studies related to oral hygiene products and the design of oral health promotion programs.

A National Dental Practice-Based Research Network phase II, cluster-randomized clinical trial assessing nicotine replacement therapy sampling in dental settings: study protocol for the Free Samples for Health (FreSH) study

BackgroundCigarette smoking has major detrimental effects on oral health. Tobacco interventions in dental settings are effective, but rarely delivered. The American Dental Hygienists Association recommends that oral health providers: Ask patients about tobacco use, Advise quitting tobacco use, and Refer to state quitlines (Ask-Advise-Refer; AAR). While AAR connects patients to counseling, it does not directly connect patients to medication. Nicotine replacement therapy sampling (NRTS) is an empirically supported intervention to provide starter packs of nicotine replacement therapy (NRT) to people who smoke. NRTS combined with AAR could be an effective tobacco treatment intervention for dental settings.MethodsThis manuscript describes the study protocol for the Free Samples for Health (FreSH) study, a group randomized clinical trial testing the effectiveness of NRTS + AAR vs. AAR alone on long-term smoking abstinence. Fifty dental practices in the Midwest and Northeast nodes of the National Dental Practice-Based Research Network are randomly assigned to provide AAR and either a 2-week supply of 14-mg nicotine patches and 4-mg nicotine lozenges (NRTS condition) or an electric toothbrush (ET condition). Approximately 1,200 patients who currently smoke—regardless of interest in quitting— are recruited during dental visits. Participants complete a baseline survey in-person, then after visit, 1-, 3-, and 6-month follow-up surveys remotely. The primary outcome is carbon monoxide-confirmed 7-day point prevalence abstinence from combustible tobacco measured at 6 months post-enrollment. Secondary outcomes include: 24-h intentional quit attempts, change in cigarettes smoked per day, NRT utilization, attitudes toward NRT, intention to use NRT, and intention to quit smoking. A key informant process evaluation and cost effectiveness analysis will provide information for future implementation of NRTS.DiscussionThis is the first clinical trial to assess the effectiveness of NRTS on promoting smoking cessation in dental settings. If effective, this treatment could be implemented to increase the provision of smoking cessation interventions in dental settings to provide an additional treatment access point for people who smoke.Trial Registration.Registered at ClincalTrials.gov (NCT05627596) on 11/25/2022.

Evaluation of the Surface Roughness and Solubility of Newer Self-blending Composite Resin following Home-bleaching and Brushing-mouth Rinsing Cycle

Objective(s): To evaluate the effect of tooth brushing and mouth rinsing after bleaching with 16% carbamide peroxide (16% CP) on the surface roughness and solubility of newer self-blending resin composite. Materials and Methods: About 70 specimens were fabricated with Estelite sigma-quick composite resin and subjected to bleaching using custom-tray with 16%CP gel for 6hours except 10 samples to serve as control group and divided into seven groups (n=10) as follows: group 1: no bleaching (control), group 2: 16% CP, group 3: brushing, group 4: brushing+Listerine mouth rinse, group 5: brushing +Colgate Plaxmouth rinse, group 6: Listerine, group 7: Colgate Plax. Electric tooth brushing was done using toothpaste slurry for 3min, immersed in mouth-rinse of respective groups for 1min and placed in artificial saliva for 24hrs. This was done for a total period of 21 days followed by surface roughness and solubility testing. Data were statistically analyzed using one-way ANOVA and post hoc Tuckey tests (p<0.05). Results: Group 4 (Brushing + Listerine) showed greater surface roughness and solubility followed by group 6 (Listerine). No significant difference was found between group1 with group3 and group 5. Conclusion (s): Along with brushing, Listerine mouth rinse has a determining effect on surface roughness and solubility of newer self-blending composite resin following bleaching with 16% Carbamide peroxide.

ToMoBrush: Exploring Dental Health Sensing Using a Sonic Toothbrush

Early detection of dental disease is crucial to prevent adverse outcomes. Today, dental X-rays are currently the most accurate gold standard for dental disease detection. Unfortunately, regular X-ray exam is still a privilege for billions of people around the world. In this paper, we ask: "Can we develop a low-cost sensing system that enables dental self-examination in the comfort of one's home?" This paper presents ToMoBrush, a dental health sensing system that explores using off-the-shelf sonic toothbrushes for dental condition detection. Our solution leverages the fact that a sonic toothbrush produces rich acoustic signals when in contact with teeth, which contain important information about each tooth's status. ToMoBrush extracts tooth resonance signatures from the acoustic signals to characterize the dental condition of each tooth. We further develop a data-driven signal processing pipeline to detect and discriminate different dental conditions. We evaluate ToMoBrush on 19 participants and dental-standard models for detecting common dental problems including caries, calculus, and food impaction, achieving a detection ROC-AUC of 0.90, 0.83, and 0.88 respectively. Interviews with dental experts further validate ToMoBrush's potential in enhancing at-home dental healthcare.

Cleansing efficacy of the electric toothbrush Oral-B® iO™ compared to conventional oscillating-rotating technology: a randomized-controlled study

ObjectivesThis study aimed to compare the cleansing efficacy of the Oral-B® iO™ electric toothbrush incorporating oscillating-rotating technology with microvibrations - with a traditional oscillating-rotating toothbrush.Materials and methodsThirty adult participants were randomly assigned to use the iO™ electric toothbrush with the brush head iO™ Ultimate Clean or the traditional oscillating-rotating toothbrush Oral-B® Genius® with the Cross-Action brush head. Oral hygiene indices (Rustogi Modified Navy Plaque Index and Gingival Bleeding Index) were assessed before and after 28 days of home use of the assigned product. Participants were instructed to refrain from interdental hygiene during the study period. After a 2-week washout period, the clinical investigation was repeated in a crossover design.ResultsAll 30 participants completed the study with no dropouts. After 28 days of use, the iO™ showed statistically significantly lower plaque levels than the conventional oscillating-rotating toothbrush (25.09% vs. 30.60%, p = 0.029). This difference was particularly noticeable in marginal and approximal areas. There were no significant distinctions in gingival bleeding indices.ConclusionsThe Oral-B® iO™ electric toothbrush displayed enhanced plaque removal efficiency compared to a conventional oscillating-rotating technology.Clinical relevanceThis study highlights the potential benefits of advanced toothbrush technologies for plaque reduction and encourages further research.

A Remote Oral Self-Care Behaviors Assessment System in Vulnerable Populations: Usability and Feasibility Study.

Preventative self-care can reduce dental disease that disproportionately burdens vulnerable populations. Personalized digital oral self-care behavioral interventions offer a promising solution. However, the success of these digital interventions depends on toothbrushing data collection e-platforms attuned to the needs and preferences of vulnerable communities. The aim of this study is to assess the usability and feasibility of the Remote Oral Behaviors Assessment System (ROBAS), which has been adapted to address the unique requirements of socioeconomically disadvantaged minority individuals. A cohort of 53 community-clinic participants, including 31 (58%) Latino and 22 (42%) Black individuals with no prior experience using electric toothbrushes, were recruited to use ROBAS, with planned assessments at baseline, 2 months, and 4 months. Beyond evaluating ROBAS's technical performance, extensive feedback was gathered to gauge users' experiences, viewpoints, and overall contentment. The System Usability Scale (SUS) served as a primary metric for assessing user satisfaction and acceptability. ROBAS exhibited largely reliable and consistent data-gathering capabilities. SUS scores (mean 75.6, SD 14.5) reflected participant contentment within a range of values for other commonly used digital devices and technologies. Among participants who answered questions about willingness to pay for ROBAS, 97% (30/31) indicated that they were willing to pay for ROBAS either as a one-time payment or as a subscription-based service. Additionally, 87.5% of participants expressed that they would endorse it to acquaintances. Most participants expressed no reservations about privacy; among those who expressed privacy concerns (n=20, 50%), the concerns included exposure of information (n=18, 45%), monitoring of brushing habits (n=12, 30%), and collection of information (n=14, 35%), although these concerns did not significantly correlate with specific participant traits. In qualitative terms, users valued ROBAS's ability to monitor brushing habits but called for refinements, especially in Wi-Fi and application connectivity. Recommendations for system improvements encompassed enhanced app functionality, individualized coaching, more comprehensive brushing data, and the addition of flossing activity tracking. The research highlights ROBAS's promise as a digital platform for unobtrusively tracking daily oral self-care activities in marginalized communities. The system proved to be both feasible, as evidenced by its stable and accurate data capture of brushing behaviors, and user-friendly, as reflected by strong SUS scores and positive user feedback. Influential factors for its uptake included ease of learning and operation, and the feedback provided.

Dentists who can auscultate: Microphone-based toothbrushing quality monitoring system for electronic toothbrush

Tooth brushing is a widely recognized and effective method for daily oral care. However, the lack of real-time feedback for monitoring the brushing process can hinder individuals in maintaining their oral hygiene. Currently, only high-end electric toothbrushes offer evaluation functions based on built-in sensors, making them unaffordable for the majority of people. In this paper, we propose a novel and cost-effective wearable acoustic-based system (both hardware and software) for monitoring the quality of daily tooth brushing. Our system combines a throat-microphone and a Bluetooth earphone to capture brushing noises, which are unique acoustical signals generated from the air and the human body during tooth brushing, respectively. By leveraging the distinctive characteristics of brushing sounds in these two different conductive media, we introduce an intelligent detection algorithm based on Single-Input Multiple-Output (SIMO) modeling and frequency response functions (FRFs) to detect the corresponding brushing area. Through experimentation, we have found that the divergence of FRFs provides more stable features compared to general statistical features used in previous studies. After comparing various machine learning algorithms, we have selected XGBoost as the final detection model. Additionally, we utilize the Symmetric Nearest Neighbor (SNN) filter in the post-processing stage to further reduce the jitter noise in continuous detection. The final system achieves an average precision of 98.46% when tested on tooth brushing data collected from different volunteers. To enhance user experience, we have developed an Android App with a user-friendly interface that incorporates the detection system. With a total wearable hardware cost of less than 10 dollars, our system shows great potential for integration into future smart wearable devices.

Maintaining Hygiene in Orthodontic Miniscrews: Patient Management and Protocols-A Literature Review.

Oral hygiene is crucial for the success of orthodontic therapy involving temporary anchoring devices like miniscrews. Plaque buildup, exacerbated by orthodontic appliances, causes inflammation that can undermine treatment outcomes. Individualized prevention plans based on patient risk factors are essential. This review emphasizes the importance of oral hygiene in orthodontic therapy with miniscrews, identifies optimal devices for ensuring long-term stability, and explores protocols for high-risk patients. A comprehensive search was conducted on two primary databases, PubMed and Google Scholar, for relevant articles on oral hygiene and inflammation. Fourteen articles meeting the inclusion criteria were selected, covering topics such as "orthodontic miniscrew", "miniscrew and laser", "miniscrew and mouthwash", "electric toothbrush", and "GBT". Inflammation can compromise miniscrew stability by damaging surrounding bone. Miniscrews of 10 mm length have lower failure rates due to better bone contact and stability. Chlorhexidine reduces inflammation risk and inhibits epithelialization around the implant head. Laser therapy enhances miniscrew stability and reduces inflammation. Chitosan effectively suppresses inflammatory mediators and prevents microorganism adhesion. Both sonic and roto-oscillating electric toothbrushes remove plaque effectively, with roto-oscillating brushes showing superior results. The Guided Biofilm Therapy (GBT) protocol offers professional hygiene benefits similar to traditional methods, with improved patient engagement and motivation. Home oral hygiene maintenance is paramount for preventing inflammatory complications. Professional interventions such as diode laser usage, particularly in adult patients with a history of periodontitis or underlying systemic conditions, can mitigate orthodontic therapy failure risks. The GBT protocol fosters a more comfortable and participatory professional hygiene experience for patients, promoting better oral health awareness and compliance.

Changes in the enamel surface in patients with polymorphism of the <i>VDR</i> gene under the action of remineralizing composition and vitamin D

BACKGROUND: The leading role in the pathogenetic mechanism of caries development is the imbalance between the de and remineralization of hard tooth tissues. The combination of VDR alleles affects calcium-phosphate metabolism. In 65% of the human population, the structure of the VDR gene has a genetic polymorphism. AIM: To study the effect of vitamin D and a remineralizing paste on the enamel surface structure in patients with genetic polymorphism of VDR gene receptors. MATERIALS AND METHODS: In 18 individuals with a polymorphism index of the VDR A/A gene, a laboratory indicator of 25 (OH) vitamin D in the blood of 18.20±1.84 ng/ml, according to orthodontic indications, the retinated third molars in the lower jaw were removed. Then, the samples were lowered into three flasks of six pieces with 100 ml of artificial saliva. Containers with teeth were divided into groups: group 1, with a solution of artificial saliva only; group 2, an additional 1,000 IU of an aqueous solution of vitamin D; and group 3, tooth enamel was treated for 2 minutes with an electric toothbrush with a paste containing a remineralizing composition, immersed in artificial saliva with cholecalciferol 1,000 IU. The flasks were in the thermostat at a temperature of 37.4 C per day. In all samples, electron microscopy of the enamel contact surface at the level of the crown equator was performed using a Tescan Mira 3 LMU microscope (TESCAN, Czech Republic) with an Oxford X-MAX 5 energy dispersive X-ray detector (Oxford Instruments, United Kingdom) with analysis of local mineral composition. RESULTS: In group 1, with electron microscopy of enamel, areas of increased mineralization alternated with areas of reduced density. The coefficient of the molar ratio Ca/P was 1.32±0.13, indicating the destruction of hydroxyapatites. In group 2 the intercrystalline pore space was filled with calcium and phosphate ions. In group 3, the enamel surface acquired a smooth homogeneous relief. An increase in the weight percentage of trace elements was observed, and the Ca/P ratio was 2.20±0.02, which indicated a phase of remineralization. CONCLUSION: Patients with VDR gene polymorphism have a vitamin D deficiency in the blood serum. The trace element composition of the enamel surface is characterized by a phase of demineralization. Treatment with remineralizing paste and addition of cholecalciferol solution to artificial saliva changes the structure of hydroxyapatite and increases the caries-resistant properties of enamel.

Impact of air‐polishing with erythritol on exposed root dentin: A randomized clinical trial

AbstractIntroductionThe effects of air‐polishing on exposed root dentin surfaces are largely unknown, as there are only few studies which show heterogeneous results. Thus, this study was to investigate roughness changes of exposed dentin surfaces after air‐polishing and the influence of subsequent polishing with cup and paste.MethodsTotally 54 teeth with exposed root dentin surfaces were treated using a split‐mouth design by either air‐polishing with erythritol and a rubber cup with polishing paste on the test side, or rubber cup and paste alone. Teeth were finally cleaned using a sonic tooth brush. Impressions were taken at relevant time points and replicated using epoxy resin. The resulting casts were profilometrically analysed to obtain the average surface roughness (sRa) and maximum peak‐to‐valley height (sRz), which are given as the mean ± standard deviation in μm.ResultsAfter air‐polishing, in comparison to the baseline, there was a slight but significant increase in sRa (0.168 ± 0.143, p < 0.001), but sRz did not change (−0.471 ± 4.857, p = 0.936). Subsequent polishing with cup and paste and cleaning with a sonic toothbrush did not reduce the surface roughness (sonic toothbrush‐air‐polishing, sRa −0.044 ± 0.081, p = 0.218; sRz −0.551 ± 3.563, p = 0.903).ConclusionThe use of erythritol led to a slight increase in the roughness of the dentin surface, which was not reduced by polishing with a cup and paste. Polishing paste did not seem to conceal surface irregularities.

Oral health in youth with visual impairment: A longitudinal survey

This longitudinal survey aims to demonstrate improvement in oral hygiene among a group of youth with visual impairment (VI) achieved by repeated oral hygiene training, compare their progress with healthy peers (CG) and assess their oral health knowledge. In 100 VI (55♀, 45♂; ± 17.8 years) and 45 CG (23♀, 22♂; ± 17.2 years) oral hygiene training and a Quigley-Hein Plaque Index (QHI) rating were repeated six times at three-month intervals. The VI were divided into four subgroups according to the toothbrush hardness/type. A questionnaire was given to both groups. Appropriate statistical analyses were performed at 5% significance level. Both groups showed reduction in QHI, the VI had overall higher QHI values than CG. Use of an electric toothbrush in VI led to lower QHI in the last examination (p < 0.03). 69% of participants recommended dental specialists to improve communications by acquiring more illustrative aids. VI changed toothbrush less often (p < 0.02). A higher incidence of dental plaque was confirmed in VI compared to CG. After education and individual training, gradual plaque reduction has occurred in both groups. Using an electric toothbrush in VI resulted in better QHI outcomes. Repetitive preventive intervention in youth with VI helped them to adopt healthier oral hygiene habits.

Evaluation of the extent of plaque removal and users' experience of alternative toothbrushes: A randomized single-blind crossover study.

In residential care, tooth brushing with a manual toothbrush can be challenging because of technical difficulties, time consumption and poor patient cooperation, resulting in a sub-optimal cleaning. The study aimed at comparing the efficiency in plaque removal, brushing time and users' experience between three toothbrushes: a single-headed conventional manual toothbrush, a triple-headed manual toothbrush and a U-shaped electric toothbrush. This was a single-blind crossover study with three pre-post-test conditions. Participants were 26 dental students divided into fixed pairs to play the role of caregivers and care receivers. Pre/post plaque scores were determined by two independent investigators according to the Quigley-Hein Plaque Index (QHI). Questionnaires evaluated participants' experiences. Statistical tests of significances of differences and ANOVA were performed. Results showed that plaque removal was more effective for the manual toothbrush and the triple-headed toothbrush compared to the U-shaped electric toothbrush (p < 0.001). Brushing time was the longest for the single manual toothbrush (149 s). The U-shaped electric toothbrush showed significantly better results for aspects related to comfort and salivation. The manual and triple-headed toothbrush showed better results for aspects related to cleanliness and motivation to use. Notwithstanding its favourable comfort, tooth plaque removal is not enhanced by a U-shaped electric toothbrush. The triple-headed and single-headed toothbrushes reduced plaque more substantially than the U-shaped toothbrush. In addition, the triple-headed manual toothbrush was not only effective in plaque removal, but also had a shorter brushing time and was easy to use, being an adequate alternative for care-dependent patient groups.

The Effect of Different Electric Toothbrush Technologies on Interdental Plaque Removal: A Systematic Review with a Meta-Analysis.

The removal of dental plaque from the gingival margins of the teeth is essential to maintaining periodontal health. Whilst it has been established that electric toothbrushes demonstrate a greater ability to remove plaque, no systematic review has specifically investigated which technology is better for removing plaque from the interdental tooth surfaces, where plaque control may be more difficult. Three databases were searched until October 2023: MEDLINE and DOSSS via EBSCOhost and Embase. Data extraction was carried out on studies which met the inclusion criteria, and a risk of bias assessment was completed. The study findings were combined via a narrative synthesis and a meta-analysis where appropriate. A total of 77 studies were found, out of which 14 were selected and included in the analysis. The mean difference in interproximal plaque reduction, measured using the Rustogi Modified Naval Plaque Index (RMNPI) at 8 weeks, was 0.09 (p < 0.00001) in favor of the oscillating-rotating toothbrush. At 6 and 12 weeks, the mean difference in plaque reduction (RMNPI) was 0.05 (p = 0.0008) and 0.04 (p = 0.0001) in favor of the oscillating-rotating toothbrush, respectively. The studies show a tendency for oscillating-rotating toothbrushes to remove more interproximal plaque than oscillating toothbrushes, especially in a short time (8 weeks).

Effect of Dentifrice Ingredients on Volume and Vitality of a Simulated Periodontal Multispecies Biofilm.

The aim of this in vitro study was to investigate the effect of different toothpaste ingredients on biofilm volume and vitality in an established non-contact biofilm removal model. A multi-species biofilm comprising Porphyromonas gingivalis, Streptococcus sanguinis, and Fusobacterium nucleatum was grown on protein-coated titanium disks. Six disks per group were exposed to 4 seconds non-contact brushing using a sonic toothbrush. Four groups assessed slurries containing different ingredients, i.e., dexpanthenol (DP), peppermint oil (PO), cocamidopropyl betaine (CB), and sodium hydroxide (NaOH), one positive control group with the slurry of a toothpaste (POS), and a negative control group with physiological saline (NEG). Biofilm volume and vitality were measured using live-dead staining and confocal laser scanning microscopy. Statistical analysis comprised descriptive statistics and inter-group differences. In the test groups, lowest vitality and volume were found for CB (50.2 ± 11.9%) and PO (3.6 × 105 ± 1.8 × 105 µm3), respectively. Significant differences regarding biofilm vitality were found comparing CB and PO (p = 0.033), CB and NEG (p = 0.014), NaOH and NEG (p = 0.033), and POS and NEG (p = 0.037). However, no significant inter-group differences for biofilm volume were observed. These findings suggest that CB as a toothpaste ingredient had a considerable impact on biofilm vitality even in a non-contact brushing setting, while no considerable impact on biofilm volume was found.

The evaluation of the effectiveness of conventional and pulsating toothbrushes on the oral health of healthy and mentally disabled pediatric patients.

Children, especially the mentally disabled, are generally incapable of obtaining adequate oral hygiene levels by manual brushing due to their lack of knowledge about oral hygiene and their limited motor skills. In order to handle those limited skills, different designs of manual and electric toothbrushes are developed and put on markets. The aim of this study was to evaluate the effectiveness of pulsating toothbrushes with easy-to-use properties, against conventional toothbrushes and to analyze their benefits on mentally disabled pediatric patients. Thirty-one healthy and 31 mentally disabled children (aged between 7 and 12) participated in this study. The effectiveness of three different toothbrushes (Oral-B Pulsar, Colgate 360° Micro Sonic Power, Oral-B Stages 3) was investigated with a cross-over study design. DMFT, dft, modified sulcus bleeding index (MOD-SBI), approximal plaque index (API) and Green and Vermillion simplified oral hygiene index (G&V OHI-S) measurements are performed to evaluate the oral hygiene status. In the mentally disabled group the manual toothbrush for MOD-SBI, and Colgate 360° Micro Sonic Power for API showed the best results respectively. The ability of tooth brushing was improved both in healthy and in disabled children during this 5 months study. Unfortunately, it was not obvious in disabled children. Persevering training for tooth brushing might be the most important regardless of the kind of toothbrush.