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ABSTRACT: This laboratory research study was conducted to evaluate three manual toothbrushes for their ability to remove artificial plaque from interproximal sites.
Interproximal access efficacy (IAE) was evaluated using a pressure-sensitive artificial plaque substrate placed around simulated anterior and posterior teeth with horizontal and vertical brushing motions. Efficacy was determined as the maximum width of artificial plaque removed from around the teeth. Testing was conducted on three manual toothbrushes with different bristle configurations coded as: Extended [Aquafresh Between Teeth (also marketed as Dr. Best Zwischenzahn)], X-angled (Oral-B CrossAction) and Flat multitufted (Oral-B Indicator). Twenty-four tests on each toothbrush design were conducted, and the results were statistically analysed using two-sample t-tests, assuming unequal variances.
The individual mean IAE values on anterior and posterior tooth shapes with vertical and horizontal brushing were significantly (P < 0.001) higher for the toothbrush with extended bristles (Aquafresh Between Teeth) than for the other two toothbrush designs tested. When the data were combined to give an overall average, the IAE for the toothbrush with extended bristles (Aquafresh Between Teeth) was significantly (P < 0.001) higher than the IAE value for the toothbrushes containing x-angled (Oral-B CrossAction) or flat multitufted bristles (Oral-B Indicator).
Based on the demonstrated predictability of the IAE assay for clinical interproximal plaque removal, the manual toothbrush with extended bristles should be an effective brush for cleansing the dental interproximal sites.
International Journal of Dental Hygiene 08/2010; 8(3):244-8. · 0.87 Impact Factor
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ABSTRACT: The objective of this laboratory study was to assess the Sensodyne Mikro Aktiv extra soft toothbrush, compared with the Oral-B Indicator soft toothbrush, for interproximal access efficacy (IAE).
Six toothbrushes of each product were tested four times, for a total of twenty-four tests on each toothbrush design. In the IAE assay, the tooth brushing technique involved independent evaluations of each toothbrush in a vertical or horizontal brushing motion, tooth shapes simulating anterior and posterior teeth, and a brushing weight of 250 g. The brushing apparatus was set to brush for 15 seconds at two strokes per second with a 50 mm stroke. All readings were measured with 3x magnification by a single investigator.
The mean IAE value on anterior tooth shapes, with vertical and horizontal brushing, was significantly (p < 0.001) higher for the Sensodyne Mikro Aktiv toothbrush than for the Oral-B Indicator toothbrush. When the IAE values were combined to give an overall brushing average, the Sensodyne Mikro Aktiv toothbrush was significantly (p < 0.001) higher compared to the Oral-B Indicator toothbrush.
The Sensodyne Mikro Aktiv toothbrush has demonstrated superiority to the Oral-B Indicator toothbrush for access into interproximal areas using this laboratory methodology.
The Journal of clinical dentistry 01/2008; 19(2):55-8.
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ABSTRACT: The Evolve toothbrush has been developed with three heads that adjust to the tooth shape with brushing. With the exertion of gentle pressure on the center head against the tooth cusps, the two outer heads bend and conform to the tooth anatomy at the gingival areas around each tooth. In preliminary clinical observations, decreased plaque and improved gingival appearance was observed after one and two weeks of unsupervised product use. The purpose of this laboratory research was to evaluate the ability of the Evolve toothbrush bristles to remove artificial plaque deposits at and around the gingival margin (Gingival Margin Cleaning, GMC), and to gain access into and remove artificial plaque deposits from under the gingival margin (Subgingival Access, SA) using standardized, published methods.
In the first two laboratory studies conducted, two toothbrush products, the new Evolve and the standard American Dental Association toothbrush (ADA) were evaluated for GMC and SA. In the third assay, three toothbrushes, the Evolve, Oral-B CrossAction, and the Sonicare Elite, were evaluated for SA. Each toothbrush product group was evaluated for 24 assessments using clinical tooth brushing motions on posterior tooth shapes under wet brushing conditions.
In all laboratory tests conducted, the Evolve toothbrush had significantly (p < 0.001) greater efficacy compared to the other toothbrushes tested.
The Evolve toothbrush warrants further clinical evaluations as it is believed these future findings will further substantiate those of the initial testing, and demonstrate the Evolve's ability to help improve oral and overall health.
The Journal of clinical dentistry 02/2007; 18(3):91-4.
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ABSTRACT: The purpose of these laboratory studies was to evaluate three toothbrushes for their ability to remove artificial plaque deposits at interproximal sites and along the gingival margin of simulated anterior and posterior teeth, using horizontal and vertical brushing motions.
Three toothbrushes were evaluated: elmex SENSITIVE SOFT; elmex SENSITIVE EXTRA SOFT; and the ADA reference. Twenty-four tests on each toothbrush group were conducted, and results were statistically analyzed using ANOVA and the post hoc Tukey test.
In both the interproximal access efficacy and gingival margin cleaning assays, the elmex SENSITIVE EXTRA SOFT and SENSITIVE SOFT toothbrushes were statistically superior (p < 0.001) to the ADA reference toothbrush.
The elmex SENSITIVE SOFT and EXTRA SOFT toothbrushes are predicted to offer excellent plaque removal efficacy interproximal areas and along the gingival margin of both anterior and posterior teeth.
The Journal of clinical dentistry 01/2007; 18(1):25-8.
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ABSTRACT: The objective of this series of laboratory studies was to assess a new triple-head toothbrush, the DR BEST FreiKopf, compared to the Oral-B 40 toothbrush, for interproximal access efficacy (IAE), gingival margin cleaning (GMC), and subgingival access (SA) as measures of toothbrush efficacy.
In each procedure, six toothbrushes of each product were tested four times for a total of twenty-four tests on each toothbrush design. In the IAE assay, the tooth brushing technique involved independent evaluations of each toothbrush in a vertical or horizontal brushing motion, tooth shapes simulating anterior and posterior teeth, and a brushing weight of 250 g. The brushing apparatus was set to brush 15 seconds at two strokes per second with a 50 mm stroke. In the GMC assay, the tooth brushing technique involved independent evaluations of each toothbrush in a horizontal brushing motion, tooth shapes simulating posterior teeth, and a brushing weight of 500 g. Simulated gingivae were prepared from self-curing dental acrylic. The brushing apparatus was set to brush for 60 seconds at two strokes per second with a 15 mm stroke. In the SA evaluations, the tooth shapes simulating posterior teeth were used, as well as a brushing weight of 500 g for 60 seconds at two strokes per second with a 15 mm stroke. All readings were measured with 3x magnification by one investigator.
The mean IAE value on anterior and posterior tooth shapes, with vertical and horizontal brushing, and overall, was significantly (p < 0.001) higher for the triple-head toothbrush than for the Oral-B 40 toothbrush. In the GMC assay, the triple-head toothbrush had a significantly (p < 0.001) superior mean value compared to the Oral-B 40 product tested. In the SA study, the triple-head toothbrush was significantly (p < 0.001) superior compared to the Oral-B 40 toothbrush product tested.
The triple-head toothbrush has demonstrated superiority to a traditional flat-head toothbrush for access into interproximal areas, and for removing deposits from the gingival margin, as well as below the gumline, in these laboratory assays.
The Journal of clinical dentistry 02/2005; 16(1):6-10.
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ABSTRACT: Laboratory methods have been developed to evaluate the ability of toothbrush bristles to remove artificial plaque deposits at interproximal sites (Interproximal Access Efficacy; IAE) and on distal tooth surfaces (Posterior Tooth Surface Cleaning; PTSC). In the testing performed for this study, six toothbrushes were evaluated. These were: elmex inter X Sensitive; elmex inter X Sensitive Short Head; elmex inter X medium; elmex inter X Medium Short Head; Oral-B Cross Action 40 medium; and the ADA reference standard toothbrush. Six toothbrushes of each design were tested four times under wet brushing conditions in all assays. In the IAE studies, toothbrushing was conducted using a vertical or horizontal brushing motion, simulated anterior or posterior teeth, and a brushing weight of 250 g. The bristles were placed at a 90 degree angle to the tooth surface, and brushing was performed for 15 seconds at two strokes per second with 50 mm strokes. IAE was recorded as the maximum width of simulated plaque deposit removed. For the PTSC evaluations, a horizontal brushing motion was used on posterior tooth shapes, with a 250 g brushing pressure for ten seconds. PTSC was determined as the maximum measurement of artificial plaque deposit removed from the mid-facial area to the maximum post-distal area of the most posterior simulated tooth shape. All data were assessed with ANOVA and the post hoc Tukey test. In the individual IAE tests, with vertical or horizontal brushing on anterior and posterior simulated teeth, and on overall IAE mean values, the four elmex inter X toothbrushes were significantly higher (p < 0.01-0.001) than the ADA reference standard and the Oral-B Cross Action 40 toothbrushes. The mean PTSC values for all toothbrushes were significantly higher (p < 0.01-0.001) compared to the ADA Reference Standard toothbrush mean PTSC. All elmex inter X brushes were statistically significantly higher (p < 0.01-0.001) compared to the Oral-B Cross Action 40 product. The elmex inter X Medium had a significantly higher (p < 0.05-0.001) PTSC compared to the PTSC mean values of the other elmex inter X products tested.
The Journal of clinical dentistry 01/2002; 13(6):249-52.
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ABSTRACT: The purpose of these studies was to evaluate four toothbrushes with a similar flat profile for stiffness and efficacy in removing artificial plaque deposits from interproximal areas, or depth of removal from broad tooth surfaces, and to relate these findings to bristle stiffness. The test toothbrush had 5-mil diameter, elongated diamond-shaped bristles (D). Three toothbrushes contained 5-mil (5), 6-mil (6), or 7-mil (7) diameter round bristles. Stiffness studies were performed using the ISO 8627 method. In the efficacy studies, toothbrushing was conducted with a vertical or horizontal brushing motion on simulated anterior or posterior teeth using a brushing weight of 250 g. The bristles were placed at a 90 degrees angle to the tooth surface, and brushing was performed for 15 seconds at two strokes per second with 50 mm strokes. Each of the toothbrush designs was tested 24 times. Interproximal access efficacy (IAE) was recorded as the maximum width of simulated plaque deposit removed. Depth of deposit removal (DDR) was determined using a color comparative scale, where 0 = no deposit change and 4 = maximum removal. The averages of wet and dry stiffness measurements were found to be 7 > D > 6 > 5; all values were in the range accepted as soft texture. The means for total IAE were ranked D > 5 > 6 > 7, and total DDR mean rankings were D > 7 > 6 > 5. For the round bristles, stiffness was inversely related to IAE and paralleled the DDR rankings. Using ANOVA, the D and 5-mil toothbrushes had significantly higher (p < 0.05) IAE means compared to the 6- or 7-mil products. The D toothbrush had significantly higher (p < 0.05) DDR means than the 5-mil product. The diamond-shaped bristles in these flat profile products resulted in improved depth of deposit removal compared to the same design with 5-mil round bristles.
The Journal of clinical dentistry 01/2001; 12(4):112-5.
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ABSTRACT: Interproximal access efficacy (IAE) has been evaluated in a laboratory method using pressure-sensitive paper placed around simulated anterior and posterior teeth, using horizontal or vertical brushing motions. The two toothbrushes evaluated in this study were the Oral-B Cross Action Medium 40 and the Dr. Best X-Activ Mittel. Twenty-four tests on each toothbrush design were conducted, and results were statistically analyzed using ANOVA. In all of the individual evaluations, using either vertical or horizontal brushing motions on either anterior or posterior simulated teeth, the Dr. Best X-Activ Mittel toothbrush was significantly (p < 0.001) more effective than the Oral-B Cross Action Medium 40 in achieving IAE. When individual IAE data from the vertical, horizontal, anterior and posterior assessments were combined to assess overall IAE, the Dr. Best X-Activ Mittel toothbrush had a significantly (p < 0.001) higher mean value than the Oral-B Cross Action Medium 40 mean value.
The Journal of clinical dentistry 02/2000; 11(2):60-2.
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ABSTRACT: Recent technological advances have enabled the production of split or feathered endings of individual toothbrush filaments. The purpose of this laboratory study was to compare a bi-level manual toothbrush containing standard end-rounded bristles with the same shaped toothbrush containing feathered filaments, 3 mm deep, on the outer raised bi-level rows to achieve subgingival access (SA) and remove artificial plaque at the gingival margin, or gingival margin cleaning (GMC). Simulated gingivae were prepared with a 0.2 mm space between the gingivae and tooth surface. The toothbrushes were aligned with the papillae at the gingival margin, and were tested using wet brushing conditions for 60 seconds at two strokes per second with a 15 mm stroke. Four toothbrushes of each type were evaluated four times, for a total of 16 assays per design. The SA maximum depth was recorded on pressure-sensitive paper under the simulated gingivae, and the length of gingival margin cleaning was recorded as the GMC efficacy. Readings were performed with 3x magnification by one investigator. In these laboratory assays, the bi-level toothbrush with feathered outer-row bristles significantly (p < 0.001) increased the ability of the bristles to achieve SA by 35.7% and GMC efficacy by 54.5% compared to an identical bi-level toothbrush with end-rounded bristles.
The Journal of clinical dentistry 02/2000; 11(1):20-3.
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ABSTRACT: A sonic subgingival cleaning device (soniPick Sonic Interdental Plaque Remover) has recently been marketed with three bristle tips varying in size lengths and bundle diameters. The purpose of this study was to evaluate the ability of these bristle tips to remove subgingival artificial plaque deposits in a laboratory method used for toothbrushes. The laboratory method has been modified for testing the sonic device, to simulate the directions for using the product at home. The dimensions (length x bundle width) of three tips tested were: 0.007" x 0.040"; 0.007" x 0.062"; and 0.009" x 0.062". The tips used with the sonic device were placed on the tooth surface at a 20 degrees angle according to directions, and inserted 3 mm under simulated gingivae. The device was turned on and the tip was moved in a maximum 10 mm stroke for 15 seconds with the brushing machine. For control purposes, a flat, multi-tufted, ADA-accepted manual toothbrush (Oral-B P35) was also tested. The manual toothbrush was tested using the standard methods for evaluating toothbrushes, i.e., with the bristle tips placed at the gingival margin, then brushed at a 45 degrees angle at 250 g weight, using 15 mm strokes for 60 seconds. The depth of subgingival deposit removal was recorded as the maximum depth of the artificial plaque deposit removed from the pressure-sensitive paper under the simulated gingivae over anterior- or posterior-shaped teeth. In the assays conducted, the three bristle tips on the sonic device removed artificial plaque deposits under the simulated gingival at depths of 1.9-2.7 mm. The manual toothbrush had a mean subgingival cleaning depth of 0.6 mm. Differences between the three bristle tips used with the sonic device and the manual toothbrush were significant (p < 0.001 ANOVA). In this laboratory assay, all 3 bristle tips provided with the sonic cleaning device maintained access into and subsequent removal of artificial plaque from the subgingival space.
The Journal of clinical dentistry 01/1999; 10(4):139-42.
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ABSTRACT: A new laboratory procedure has been developed to evaluate subgingival access efficacy (SAE) of toothbrush bristles using clinical toothbrushing motions and pressure-sensitive paper placed around simulated tooth shapes and gingival tissues under wet brushing conditions. Subgingival access is determined by measuring the maximum distance of the bristle marks from the brushing stroke on the pressure-sensitive paper under the simulated gingival tissues. Four manual toothbrushes (Reach Tooth & Gum Care, Colgate Total Design, Mentadent and Oral-B Advantage) with differing designs, bristle feathering or outside row dimensions were evaluated. Each toothbrush design was evaluated for 28 assessments on anterior and posterior tooth shapes. On overall assessments for subgingival access, the Reach Tooth & Gum Care toothbrush was significantly (p < 0.05-0.001) superior to the other three commercially available toothbrushes tested.
The Journal of clinical dentistry 02/1998; 9(1):1-4.
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ABSTRACT: The purpose of this study was to determine the depth of deposit removal of three dentifrices using a dental felt polishing tip or an Oral-B P 35 toothbrush. The dentifrices were compared using a laboratory method which simulates clinical tooth polishing or toothbrushing procedures, and utilizes a pressure-sensitive paper that records the depth of deposit removal. Each polishing time was conducted for five seconds; toothbrushing time was 15 seconds. Both polishing and toothbrushing were performed at a weight of 250 grams. Depth of Deposit Removal (DDR) was recorded using a 0-4 scale from a comparative color chart. The dentifrices evaluated were Arm & Hammer Dental Care, Colgate Regular, and Crest Regular. Twenty-four replicates of each dentifrice, tested undiluted, were performed. Results indicated that dentifrice efficacy was ranked numerically as Arm & Hammer Dental Care > Colgate Regular > Crest Regular. In all of the assays the Arm & Hammer Dental Care dentifrice had significantly (p < 0.01-0.001) higher DDR mean values compared to the Colgate Regular and Crest Regular dentifrices. The Colgate Regular dentifrice was significantly (p < 0.01-0.001) superior to the Crest Regular dentifrice in the assays conducted.
The Journal of clinical dentistry 02/1998; 9(3):61-3.
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ABSTRACT: A laboratory testing method, which has previously been shown to correlate with in vivo plaque removal results, was used to test the interproximal access efficacy (IAE) of two powered toothbrushes (Sonicare Plus and Braun Oral-B Ultra), and a manual toothbrush. This method tests IAE by means of simulated interdental spaces covered with pressure-sensitive paper tightly apposed to the surface. Testing was performed under wet conditions using 70, 100 and 140 grams of brushing force. Brushing was done for 15 seconds. The pressure-sensitive papers were removed, dried, and the IAE was quantified by a blinded investigator who measured the markings on the papers with calipers. The Sonicare Plus interproximal access scores were significantly greater than both the Braun Oral-B Ultra and the manual toothbrush at all three brushing forces tested (p < 0.001). These findings demonstrate that in vitro methodology previously used for testing manual toothbrushes is also adaptable for testing powered brushes. While additional studies are needed to confirm the clinical relevance of the present study, these results demonstrate the superiority of interproximal access of the Sonicare Plus sonic toothbrush over the Braun Oral-B Ultra powered brush and a manual toothbrush using this method.
The Journal of clinical dentistry 01/1997; 8(1 Spec No):26-9.
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ABSTRACT: The Colgate Precision Compact, soft texture toothbrush and the Oral-B 35 toothbrush were compared using a laboratory device designed to simulate clinical toothbrushing motions and pressures. The toothbrushing time was sixty seconds for each vertical or horizontal toothbrushing sequence, for each of the three brushing weights tested (250, 500 or 750 g). Interproximal access efficacy (IAE) was determined by measuring the maximum width of the brushing stroke on pressure-sensitive paper placed around simulated anterior or posterior teeth. Twenty-four toothbrushes of each design were evaluated for each toothbrushing motion, tooth shape and toothbrushing weight. Using the vertical toothbrushing motion on anterior teeth, IAE means for the Colgate Precision Compact toothbrush were significantly higher (p < 0.001) than the Oral-B 35 toothbrush at 250 and 750 g of brushing weight. With vertical toothbrushing across posterior-shaped teeth, IAE values for the Colgate Precision Compact toothbrush were significantly higher (p < 0.001) than the Oral-B 35 toothbrush at each of the 250, 500 and 750 g brushing weights tested. With horizontal toothbrushing motions, the Colgate Precision Compact toothbrush had significantly higher (p < 0.001) IAE means, compared to the Oral-B 35 toothbrush, on both anterior and posterior tooth shapes and at each of the brushing weights tested. When all factors tested were combined, the total IAE for the Colgate Precision Compact toothbrush was significantly superior (p < 0.001) to the Oral-B 35 toothbrush.
The Journal of clinical dentistry 02/1994; 4(4):111-3.
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ABSTRACT: The Colgate Plus Rippled Bristles toothbrush and the Oral-B 40 toothbrush were compared using a laboratory device designed to stimulate clinical toothbrushing motions and pressures and measure interproximal access efficacy. The toothbrushing time was sixty seconds for each vertical or horizontal toothbrushing sequence and for each of the three brushing weights tested (250, 500 or 750 grams). Interproximal access efficacy was determined by measuring the maximum width of the brushing stroke on pressure-sensitive paper placed around simulated anterior or posterior teeth. Twenty-four toothbrushes of each design were evaluated for each toothbrushing motion, tooth shape and toothbrushing weight. With vertical toothbrushing motions, the Colgate Rippled toothbrush had significantly higher (p < 0.001) interproximal access efficacy means compared to the Oral-B 40 toothbrush, on anterior tooth shapes at the 250 and 500 grams of brushing weights and on posterior tooth shapes at all of the brushing weights tested. Using the horizontal toothbrushing motion on anterior teeth, the interproximal access efficacy for the Colgate Rippled toothbrush was significantly higher (p < 0.05) than the Oral-B 40 toothbrush at 250 and 500 grams of brushing weights. With horizontal toothbrushing across posterior-shaped teeth, interproximal access efficacy values for the Colgate Rippled toothbrush were significantly higher (p < 0.05-0.001) than the Oral-B 40 toothbrush at all of the brushing weights tested. When the various parameters tested were combined for all brushing weights, both brushing motions or both tooth shapes, interproximal access efficacy means for the Colgate Rippled toothbrush were higher (p < 0.05-0.001) than the combined means for the Oral-B toothbrush. When all factors tested were combined, total interproximal access efficacy for the Colgate Rippled toothbrush was significantly superior (p<0.001) to the Oral-B 40 toothbrush.
The Journal of clinical dentistry 01/1993; 4(3):82-4.
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ABSTRACT: The Colgate Precision toothbrush and the Crest Complete toothbrush were compared using a laboratory device designed to simulate clinical toothbrushing motions and pressures, allowing measurement of interproximal access efficacy. The toothbrushing time was sixty seconds for each vertical or horizontal toothbrushing motion and for each of the three brushing weights tested (250, 500 or 750g). Interproximal access efficacy was determined by measuring the maximum width of the brushing stroke on pressure-sensitive paper placed around simulated anterior or posterior-shaped teeth. Twenty-four toothbrushes of each design were evaluated for each toothbrushing motion, tooth shape and toothbrushing weight for a total of 576 measurements. Using vertical toothbrushing motions the Colgate Precision toothbrush had significantly higher (p < 0.01) interproximal access efficacy mean values, compared to the Crest Complete toothbrush on both anterior and posterior tooth shapes and at each of the brushing weights tested. Using the horizontal toothbrushing motion on anterior-shaped teeth, the interproximal access efficacy for the Colgate Precision toothbrush was significantly greater (p < 0.05) than the Crest Complete toothbrush at 750g of brushing weight. With horizontal toothbrushing across posterior-shaped teeth, interproximal access efficacy values for the Colgate Precision toothbrush were significantly greater (p < 0.01) than the Crest Complete toothbrush at the 250, 500 and 750g brushing weights tested.
The Journal of clinical dentistry 01/1993; 4 Suppl D:D1-4.
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ABSTRACT: Sixty-five subjects were assigned to use Crest or Rembrandt dentifrice with either a placebo or Peridex rinse for eight weeks. One group, using Peridex, started with Crest and switched to Rembrandt at week four of the study. There were no significant differences among the groups on gingivitis, plaque, or calculus by the conclusion of the study. On the stain intensity index there was a significant statistical difference on buccal surfaces between Crest and Rembrandt with placebo compared to Crest with Peridex. On lingual surfaces, Rembrandt with placebo rinse was significantly lower than all Peridex rinse groups by the end of the study. From baseline to the conclusion of the study, Crest with placebo had no change in stain intensity, while Rembrandt with placebo had a significant drop on both buccal and lingual surfaces. The Peridex groups had increases on buccal stain intensity. On stain area scores, by the conclusion of the study both Crest and Rembrandt with placebo were significantly different from Crest with Peridex on buccal and lingual surfaces. Over time there was no significant change in stain area for the Crest with placebo groups. Rembrandt and placebo was significantly lower on stain area from baseline to week eight on buccal surfaces. The Peridex groups had increases in stain area over the study period.
The Journal of clinical dentistry 02/1992; 3(2):59-65.
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ABSTRACT: Eighteen subjects participated in a stain removal study following two months of Peridex use. The subjects were randomly assigned to use either Rembrandt dentifrice or Crest dentifrice for two months. Indices for stain area and intensity were taken at baseline, two, four, and eight weeks. After eight weeks' use, the Rembrandt group had a 37.1% lower stain area score on facial and 30% lower stain score on lingual surfaces compared to the Crest dentifrice group. On total surface stain area, the Rembrandt group was significantly lower than the Crest dentifrice group at p less than .05. Over eight weeks, the Rembrandt group had a significant drop in stain area while the Crest group had no significant change. On the stain intensity index, there was a 45.7% reduction on facial surfaces and 38.2% on lingual surfaces compared to the Crest dentifrice group which was significant at p less than .01.
The Journal of clinical dentistry 02/1992; 3(2):66-9.
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ABSTRACT: A new toothbrush from the Colgate-Palmolive Company, called the Colgate Precision toothbrush, was compared to the Oral-B 40 toothbrush and Reach Full-Head soft toothbrush using a laboratory device designed to simulate clinical toothbrushing motions and pressures. The toothbrushing time was sixty seconds for each vertical or horizontal brushing motion and for each of the three brushing weights tested, 250, 500 or 750 grams. Interproximal access efficacy was determined by measuring the maximum width of the brushing stroke measured on pressure sensitive paper placed around the simulated anterior or posterior teeth. Twenty-four toothbrushes of each design were evaluated for each toothbrushing motion, tooth shape and toothbrushing weight for a total of 864 measurements. In all studies conducted, the Colgate Precision toothbrush had statistically superior total interproximal access efficacy scores compared to the Oral-B and Reach toothbrushes. In several assessments the Reach toothbrush was superior to the Oral-B 40 toothbrush.
The Journal of clinical dentistry 02/1992; 3(Suppl C):C5-8.
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ABSTRACT: Two clinical studies have been performed to assess the intraoral safety and efficacy of a mechanical device containing a rubber cup polisher and interdental stimulator (Stimu-gum). In the first study the potential for producing irritation of the oral mucosal tissues was evaluated in 19 subjects when the Stimu-gum product was used in an exaggerated manner, i.e., five times a day for seven days. No untoward effects attributed to use of the Stimu-gum product were observed or reported at anytime in the study. A thirty-day study on 64 subjects compared the Stimu-gum device with an Oral-B 35 manual toothbrush for safety, plaque removal and gingivitis evaluations, at baseline and after 15 and 30 days of product use. The Stimu-gum product and the Oral-B toothbrush were equally effective in removing overnight plaque. The Stimu-gum device was significantly more effective than the Oral-B toothbrush in reducing gingivitis scores at 30 days and bleeding on probing at 15 days. Bleeding on probing scores continued to be lower in the Stimu-gum group at 30 days; however, differences were not statistically significant compared to the Oral-B mean scores.
The Journal of clinical dentistry 02/1992; 3(4):116-20.
