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Biomedical subjects

T E Balanyk

Publications and source records attributed to T E Balanyk.

6 recordsLinked to original sources

A clinical study of comparative plaque removal performance of two manual toothbrushes.

A single-blind, two-phase cross-over clinical trial compared the plaque removal performance of two commercially available manual toothbrushes, Colgate Precision Full Head soft and Crest Complete soft. One hundred and one eligible adult male and female subjects refrained from toothbrushing for 24 hours and were then scored for dental plaque using the Rustogi, et al. refinement of the Modified Navy Plaque Index (Rustogi, et al. Index) on the facial and lingual surfaces of all natural teeth. Upon qualifying, subjects were stratified according to Mean Plaque Index (MPI) values and randomly assigned to one of two balanced groups. Seven days later, having refrained from oral hygiene procedures for a period of 24 hours, subjects returned for plaque scoring and the initial test toothbrushing. Their plaque was disclosed with a red disclosing solution and pre-brushing plaque scores were recorded. Subjects were assigned a test toothbrush (according to group) and brushed for an unsupervised, timed 60 seconds. They returned to the clinic and were again disclosed and evaluated for plaque. These post-brushing plaque scores were also recorded. This completed Visit 1. Subjects were instructed to resume their normal, unsupervised routine and return to the clinical site one week later for Visit 2, again with 24-hour oral hygiene abstention. At that time the alternate test toothbrush was assigned to each group in a cross-over design. Plaque scoring, toothbrushing and repeat plaque scorings were performed and recorded as at Visit 1. Before and after disclosing, plaque scoring and toothbrushing were again performed.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗

Antiplaque efficacy of a prebrushing rinse.

One-hundred forty-nine (149) healthy adult subjects completed a single-use, supervised trial, and 143 subjects completed a 6-week trial to determine the effect of rinsing with Plax prebrushing mouthrinse on supragingival plaque reduction. During the single-use trial, plaque was scored both initially and after subjects rinsed with Plax or a negative control rinse and then brushed with a dentifrice. Following a dental prophylaxis subjects then began a "home-use" phase of rinsing prior to normal brushing, twice daily for 6 weeks, at which time plaque was rescored. In the single-use trial, Plax and control rinses produced 21% and 22% reductions in plaque scores respectively. In the 6-week trial, Plax and control rinses produced 10% and 11% reductions in plaque scores respectively. In all cases, Plax was no more effective than the control rinse in enhancing the plaque-removal effectiveness of toothbrushing.

Adolescent↗

Development of sustained-release antimicrobial dental varnishes effective against Streptococcus mutans in vitro.

Two antimicrobial varnishes were developed to be applied to the teeth for the eradication of Streptococcus mutans infections. One of them contained chlorhexidine acetate as the antimicrobial agent and the other, erythromycin base. Both varnishes contained Sumatra benzoin. Each of the two antimicrobial agents was shown to be highly effective against S. mutans and to be compatible with the benzoin vehicle. When applied to extracted teeth, both varnishes dried to form a tough, adherent, and colorless transparent layer. Dried samples of the varnishes, when suspended in frequently-changed buffer, released their microbial agents at low but bactericidal levels for at least 12 days. After the first day, drug release from the chlorhexidine varnish showed approximately zero-order kinetics, while the erythromycin varnish showed a combination of zero-order and first-order kinetics.

Amines↗

Sanguinarine: comparisons of antiplaque/antigingivitis reports.

A critical comparison of the numerous clinical studies on sanguinarine indicates an extreme divergence of reported effects on plaque/gingivitis, ranging from significant reductions to findings of no detectable effect. These equivocal findings stem from numerous short-term studies and fewer long-term studies employing divergent experimental methods. The long-term performance of the sanguinarine mouthrinse or dentifrice, alone or in combined use, still remains to be firmly demonstrated and replicated. The majority of clinical trials fail to demonstrate consistent clinical benefits from the use of this agent.

Alkaloids↗