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These proteins were also identified as constituents of the long term in vivoformed acquired pellicle on human tooth surfaces employing the same immunoperoxidase technique. Immunological quantitation of proline-rich proteins in whole and parotid saliva of 42 subjects indicates the presence of high concentrations in parotid secretions varying between 19-80 mg%, while their levels in whole saliva are significantly lower, ranging between 0-18 mg%. The concentrations of these proteins in whole saliva exhibited a negative correlation with plaque accumulation (r = -0.464) and gingival index scores (r = -0.576).<\/jats:p>","DOI":"10.1177\/00220345800590081201","type":"journal-article","created":{"date-parts":[[2010,11,28]],"date-time":"2010-11-28T21:14:56Z","timestamp":1290978896000},"page":"1430-1438","source":"Crossref","is-referenced-by-count":82,"title":["Basic Biological Sciences"],"prefix":"10.1177","volume":"59","author":[{"given":"Eleni E.","family":"Kousvelari","sequence":"first","affiliation":[{"name":"Department of Oral Biology, School of Graduate Dentistry"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Robert S.","family":"Baratz","sequence":"additional","affiliation":[{"name":"Department of Anatomy, School of Medicine, Boston University, 80 E. 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