Showing papers by "Mel Rosenberg published in 1996"

Clinical assessment of bad breath: current concepts

Abstract: Bad breath typically originates in the mouth, often from the back of the tongue Nasal problems also can cause bad breath; odor generated in this manner can be easily distinguished from mouth odor by comparing the odor exiting the mouth and nose In most cases, good professional oral care combined with a daily regimen of oral hygiene--including interdental cleaning, deep tongue cleaning and optional use of an efficacious mouthrinse---will lead to improvement This article discusses common causes of oral malodor as well as methods to assess the extent of the problem

Efficacy of a 2-Phase Oil:Water Mouthrinse in Controlling Oral Malodor, Gingivitis, and Plaque

Abstract: The purpose of the study was to examine the anti-malodor, anti-gingivitis, and plaque reducing properties of a 2 phase oil:water mouthrinse compared with a control mouthrinse. Fifty subjects rinsed with one of the two rinses for 30 seconds twice a day over 6 weeks, while continuing their normal oral hygiene habits. Measurements were made at time zero (prior to beginning the rinsing regimen), and ≥ 9 hours following rinsing, at intervals of 1, 3, and 6 weeks. Malodor of whole mouth, as well as tongue dorsum anterior and posterior, was assessed on a 0 to 5 semi-integer scale by two odor judges. Volatile sulphide compounds (VSC) were determined using a sulphide monitor. Gingival, plaque, and bleeding indices were recorded for Ramfjord teeth. Oral microbial levels were assessed using the oratest. Salivary levels of diamines (putrescine and cadaverine) were analyzed by HPLC. Results were analyzed by 2tailed covariant ANOVA, with the time zero value as covariant. Dramatic improvements were observed in parameter...

The complaint of oral malodor: possible psychopathological aspects.

Abstract: Oral malodor (halitosis) is a common concern in Western society. As with other human perceptions, emotional as well as cognitive variables play a major role in one's sensation and complaint. To study factors potentially associated with the complaint of oral malodor, periodontal and psychological evaluations were carried out on 38 subjects (66% female, mean age 43 years) with a complaint of oral malodor. Subjects underwent evaluation of their periodontal status, odor evaluation by an odor judge, and psychopathological symptom survey by means of the SCL-90 questionnaire. The patient's self-rating of oral odor was significantly higher than the evaluation of an objective odor judge and was not associated with their periodontal status. The SCL-90 profile of subjects was relatively higher than that of an age- and gender-matched reference group of dental patients. The results suggest that the complaint of oral malodor may be related to psychopathological symptoms as recorded by the SCL-90 questionnaire.

Hydrophobic interactions as a basis for interfering with microbial adhesion.

Abstract: Hydrophobic interactions are considered important in a variety of microbial adhesion phenomena in both the open environment, as well as the host (for a review on hydrophobicity in the context of microbial adhesion, see Rosenberg and Doyle, 1990) Examples of medically-related adhesion phenomena that appear to be influenced by hydrophobic interactions include adhesion to teeth, fatty tissues, insect cuticle, catheters, intrauterine contraceptive devices, bioprostheses, contact lenses, and other biomaterials, as well as a variety of epithelial and phagocytic cell types In 1980, we proposed a simple technique for measuring bacterial (later including eucaryotic microorganisms) adhesion to liquid hydrocarbons based on simply vortexing washed cell suspensions with different test hydrocarbons, with concomitant adhesion at the oil:water interface The observation that adhesion could be reversed by isopropanol was one indication that hydrophobic interactions were involved, leading us to propose this test as a simple technique for studying cell surface hydrophobicity (Rosenberg et al, 1980) Many tests exist for studying hydrophobic surface properties of microorganisms, including some recently proposed techniques (Lin et al, 1995), but their discussion is beyond the scope of this chapter (for reviews, see Rosenberg and Doyle, 1990; Rosenberg, 1991; Rosenberg et al, 1991a; Van der Mei et al, 1991) The microbial adhesion to hydrocarbon (MATH) test subsequently led us into various avenues of investigation related to identification of cell surface components which promote or interfere with adhesion at the oil:water interface, as well as soluble agents which inhibit or promote adhesion Furthermore, the observation that many oral microorganisms adhere at the oil:water interface led us to develop a novel two-phase microbe-desorbing mouthrinse, which has been sold successfully in Israel since 1992

Diagnosis and treatment of bad breath

Abstract: Recent progress in understanding the underlying scientific principles governing oral malodor