Abstract

The Hydrodent toothbrush was compared to conventional toothbrush (Lactona # 19) in its effectiveness on removing the plaque, eliminating the pocket depth, and improving the gingival tissue condition.

Forty six male and female subjects with the age range of 18 to 50 years old participated in a 5 month study with 4 week intervals. Each subject received a Hydrodent brush of soft, medium, and hard textures and a conventional toothbrush. The toothbrushes were given randomly and the subject served as his own control.

Clinical and histological evaluations were made after the use of each toothbrush. The clinical evaluation showed some degree of superiority of Hydrodent toothbrush in plaque removal. Plaque tended to decrease on the second visit and increased again on the following visits. None of the brushes had any direct effect on pocket elimination; however, the plaque scores and the pocket depth were always proportional. The Hydrodent brush greatest effect was on the male and adult population with minor change in the female and the young adult population.

Keratin, collagen density, degree of inflammation, and blood vessel proliferation showed some alteration in the study. In general, the inflammatory signs decreased at the fifth (last) visit. None of the brushes presented any superiority upon tissue condition.

Both clinical and histological results indicate that bristle texture per se does not have any influence upon plaque removal, pocket elimination, and gingival tissue condition.

LLU Discipline

Periodontics

Department

Periodontics

School

Graduate School

First Advisor

G. Conrad Hornbuckle

Second Advisor

Edwin M. Collins

Third Advisor

Richard C. Oliver

Fourth Advisor

Shirou Kunihira

Degree Name

Master of Science (MS)

Degree Level

M.S.

Year Degree Awarded

1971

Date (Title Page)

5-1971

Language

English

Library of Congress/MESH Subject Headings

Dental Plaque; Toothbrushing

Type

Thesis

Page Count

viii; 62

Digital Format

PDF

Digital Publisher

Loma Linda University Libraries

Usage Rights

This title appears here courtesy of the author, who has granted Loma Linda University a limited, non-exclusive right to make this publication available to the public. The author retains all other copyrights.

Collection

Loma Linda University Electronic Theses and Dissertations

Collection Website

http://scholarsrepository.llu.edu/etd/

Repository

Loma Linda University. Del E. Webb Memorial Library. University Archives

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