Tsponsored THIS paper is based on five surveys Greene and Vermillion in five surveys. In the one survey, where the PDI Index was used, plaque, calculus, open contact, mobility, and attrition were scored separately according to indexes9 proposed by Ramfjord. Geographical conditions and methods of oral cleansing were recorded in all of the surveys (Table 1) . Information concerning betelchewing was recorded in three surveys,1-3 use of tobacco in two,3-6 and clinical assessment of nutritional status in one survey.3 Although the same index (Russell's PI) was used for five of the surveys, the results from these surveys are not entirely comparable in regard to scores of severity, since standardization of scoring from one survey to another was attempted only in two of the studies (Greene' and Waerhaug3). All the investigators, except Greene, carefully looked for cases of degenerative periodontal disease (periodontosis). Method The Russell Index8 (PI) for assessment of prevalence and severity of periodontal disease was used in five of the six studies, while Ramfjord's (PDI) Index9 was used in one. Debris and calculus were scored according to the Oral Hygiene Index'0 (OHI) developed by Material The locations and populations included in the surveys are listed in Table
American Journal of Public Health – American Public Health Association
Published: Sep 1, 1968
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera