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  1. Fulltext The Immediate Term Effect Of Chewing Meswak (Salvadora Persica) On Flow Rate And PH Of Whole Saliva
    Hairuddin, N.M., Abdul Jalil, R.
    Ann Dent, 2000;7(1):-.
    MyJurnal
    The objective of this study was to determine the effect chewing of two differently sized commercially available meswak might have on flow rate and pH of whole saliva. Twenty subjects participated in this study. They were distributed into two groups (A and B). Subjects in both groups A and B were asked to first chew on either a sized #1 or #2 cotton roll followed by the chewing of an equivalent sized piece of meswak (approximately 5 mm. and 10 mm. diameter) respectively. For subjects in group A, no differences in mean flow rate was seen after both the chewing regimes. In group B however, the increase in mean flow rate after the chewing of meswak compared to cotton roll was statistically significant at p < 0.05. Statistically significant lower values for pH were registered after the chewing of meswak compared to cotton roll in both groups A and B at p
    Matched MeSH terms: Mastication
  2. Fulltext The problems and impacts of orofacial pain among a group of Malaysian aborigines
    Yusof ZYM, Mohamed NH, Radzi Z, Yahya NA, Ramli AS, Abdul Kadir R
    Ann Dent, 2007;14(1):31-38.
    MyJurnal
    Background: The high prevalence and impacts of orofacial pain (OFP) have caused major sufferings to individuals and society. The purpose of the study was to investigate the problems and impacts of OFP among a group of Malaysian aborigines. The objectives were to determine (i) the prevalence, aetiology, duration, severity, types and persistence of OFP during the past 3 months preceding the study; (ii) its associated impact on daily performance; and (iii) the measures taken for pain relief.
    Methods: This is a cross sectional study carried out in Kuala Lipis, Pahang involving 6 villages of Orang Asli Bateq and Semai. Study sample was chosen using convenient sampling including adults aged 16 years and above. Participants were invited for an interview using structured questionnaire followed by clinical examination. Data analysis was carried out using SPSS ver12.
    Results: Response rate was low at 20% (n = 140). Over one-quarter (26.4%) of the sample experienced OFP in the previous 3 months. Toothache was found to be the main aetiology (83.3%) followed by gingival pain (18.9%), temporomandibular joint (10.8%) and facial pain (8.1%). Mean duration of pain was 9.8 days for toothache, 162.4 days for gingival pain, 7.3 days for TMJ and 5.7 days for facial pain. Of those who had OFP, over half rated the pain as moderate (37.8%) and severe (29.7%) and most of the pain was ‘intermittent’ in nature (81.1%). Over half (62.2%) admitted the pain had disappeared during the interview. In terms of pain relief, 56.8% of the sample used traditional medicine. The pain had impacted on the chewing ability (70.3%, p=0.01), ability to sleep at night (73.0%, p<0.001), levels of anxiety (70.3%), ability to perform daily chores (33.3%) and social life (35.1%) of the Orang Asli sample.
    Conclusion: This study suggests the prevalence of OFP was high among the Orang Asli sample, which imposed considerable physical and psychological impacts on daily life.
    Key words: orofacial pain; impacts; quality of life; Malaysian aborigines
    Matched MeSH terms: Mastication
  3. Speech and mastication difficulties following treatment by a "street dentist": A case of oral lipoma
    Kamil WNWA, Zainal M, Omar AF, Jamaluddin TIBT, Ahmad MS
    Spec Care Dentist, 2021 Jan;41(1):129-134.
    PMID: 33128415 DOI: 10.1111/scd.12536
    In this report, we present the case of a 68-year-old male patient with a complaint of mastication and speech limitations one year after the prescription of a fixed bridge and the construction of "connected" crowns by a "street dentist." A thorough oral examination revealed a multilobulated swelling in the right buccal mucosa that extended to the buccal sulcus. The lesion, which was first noticed as a small, asymptomatic swelling by the patient one year prior, seemed to have undergone enlargement since the prostheses were prescribed. The lesion was completely removed via surgical excision under general anesthesia. Histopathological examination of the excisional mass revealed mature adipocytes and features consistent with conventional or classic lipoma. This case highlights the importance of receiving dental treatment from a qualified professional, whose responsibilities include performing a thorough examination of the oral cavity during treatment planning and delivery, review appointments, and regular dental visits. Such investigation is important to allow for early disease detection and control, especially for patients with complex treatment needs as well as those who may present with asymptomatic and slow-growing lesions such as lipomas.
    Matched MeSH terms: Mastication
  4. Fulltext Profile of The Betel/Tobacco Quid Chewers In six Malaysian Estates
    Tan, B.S., Rosman, A., Ng, K.H., Ahmad, N.
    Ann Dent, 2000;7(1):-.
    MyJurnal
    The aim of the study was to determine the characteristics and pattern of the betel/tobacco quid chewing habit in the estate Indian community. The study was conducted in 6 randomly selected estates. It involved oral mucosal examination and an interview to solicit personal data as well as history and details of oral habits. Of a total of 618 subjects studied, 19.3 % (n= 119; 89 females and 30 males) were betel !tobacco quid chewers. The youngest age of onset of betel quid chewing is 10 years. The mean frequency of chewing quid is 4.3 times/day and the mean duration of chewing is 8.1 minutes. Initiation to the habit occur at a young age and a major role is played by family and friends in initiation to the habit. Practises of adding tobacco and lime appear to have adverse effects and are associated with higher occurrences of precancer lesions in this study (p
    Matched MeSH terms: Mastication
  5. Fulltext The Immediate Term Effect Of Chewing Commercially Available Meswak (Salvadora Persica) On Levels Of Calcium, Chloride, Phosphate And Thiocyanate In Whole Saliva.
    Kaur, S., Abdul Jalil, R., Akmar, S.L.
    Ann Dent, 2004;11(1):-.
    MyJurnal
    The objective of this study was to determine the effect of chewing commercially available meswak may have on levels of calcium, chloride, phosphate and thiocyanate in stimulated whole saliva. A total of 20 subjects participated in the investigation. They were distributed into two groups. Those in group A (10 individuals) were asked to first chew on a cotton roll (sized #1) followed by the chewing of an equivalent sized 5mm piece of commercially available meswak. Subjects in group B (10 individuals) did the same but, chewed on cotton roll (sized #2) followed by the chewing of an equivalent sized 10mm piece of commercially available meswak. After following a specified chewing protocol, samples of stimulated whole saliva were collected into a graduated tube at the end of every chewing regime. Calcium, chloride, phosphate and thiocyanate analysis were carried out using colour titration and spectrophotometer. Results from this investigation indicated that commercially available meswak chewing sticks apart from containing high amounts of calcium and chloride may possibly release phosphate and thiocyanate into whole saliva. These findings suggest that the commercially available meswak used as chewing sticks may have the potential of releasing substances into saliva that could influence the state of oral health. Further studies have to be carried out to ascertain the therapeutic benefits of chewing commercially available meswak.
    Matched MeSH terms: Mastication
  6. Fulltext Association between muscle activity and overjet in class II malocclusion with surface electromyography
    Nishi SE, Basri R, Rahman NA, Husein A, Alam MK
    J Orthod Sci, 2018;7:3.
    PMID: 29765915 DOI: 10.4103/jos.JOS_74_17
    OBJECTIVES: The aim of the study was to assess the association and correlation between the overjet and muscle activity (the masseter and temporalis muscles) in patient with Class II malocclusion in different genders using surface electromyography (sEMG).

    MATERIALS AND METHODS: The overjet (measured clinically) and electromyographical activity (rest, chew, post chew rest, clench and post clench rest) of the masseter and temporalis muscle of class II malocclusion patient were assessed in 18 patients (3 males and 15 females) from the School of Dental Science, Hospital University Sains Malaysia.

    RESULTS: The results were compared by simple linear regression test to evaluate the association between overjet and muscle activity in different genders. Class II malocclusion patients with increased overjet group showed significant association with masseter muscle activity on chewing stage (P = 0.005, F = 6.081 and adj-R2 = 0.473). Left temporalis muscle in class II malocclusion showed a significant linear association (P = 0.014, F = 0.812 and adj-R2= -0.034) with gender during clench.

    CONCLUSION: In conclusion, class II malocclusion patient with increased overjet can affect masticatory muscle function and as well as clench force may differ in gender.

    Matched MeSH terms: Mastication
  7. Fulltext Family context and Khat chewing among adult Yemeni women: a cross-sectional study
    Al-Abed AA, Sutan R, Al-Dubai SA, Aljunid SM
    Biomed Res Int, 2014;2014:505474.
    PMID: 24982886 DOI: 10.1155/2014/505474
    Khat chewing is associated with unfavourable health outcomes and family dysfunction. Few studies have addressed the factors associated with khat chewing among Yemeni women. However, the family and husband effects on chewing khat by women have not been addressed. This study aimed to determine the prevalence of khat chewing among Yemeni women and its associated factors, particularly husbands and family factors. A cross-sectional study was conducted among 692 adult Yemeni women in the city of Sana'a in Yemen using structured "face to face" interviews. Mean (±SD) age of women was 27.3 years (±6.10). The prevalence of chewing khat by women was 29.6%. Factors associated with chewing khat among women were chewing khat by husbands (OR = 1.8; 95% CI: 1.26, 2.53), being married (OR = 2.0; 95% CI: 1.20, 3.37), frequent family social gatherings (OR = 1.5; 95% CI: 1.06, 2.10), high family income (OR = 1.57; 95% CI: 1.12, 2.21), larger house (OR = 1.63; 95% CI: 1.16, 2.31), and age of women (OR = 0.64; 95% CI: 0.44, 0.92). It is concluded that khat chewing by women in this study was significantly associated with family factors and with khat chewing by their husbands. Urgent action is needed to control khat chewing particularly among women.
    Matched MeSH terms: Mastication*
  8. Fulltext Effects of tobacco use on oral health - an overview
    Awan, K.H.
    Ann Dent, 2011;18(1):18-23.
    MyJurnal
    Tobacco use is linked with many serious illnesses, such as cancer, cardiopulmonary diseases, as well as with many health problems. Every year, the use of tobacco products causes a heavy toll of deaths and severe human disease worldwide. One of the many health problems linked to tobacco use is its detrimental impact on oral health. Tobacco causes a whole series of oral health problems, ranging from life-threatening (precancerous changes leading to oral cancer) and serious (periodontal disease, teeth decay) to social (bad breath). Tobacco is consumed through the mouth in a variety of forms, varied from smoked tobacco to smokeless tobacco chewing on itself or combined with areca nut. All these forms of tobacco have damaging effects on the oral health. The most significant preventive measure to prevent the oral health problems caused by tobacco use is to stop using tobacco products. The risk of developing oral cancer drops rapidly when a smoker ceases tobacco use. After ten years of not using tobacco, an ex-smoker/user's risk of oral cancers is about the same as that for someone who has never smoked. To stop using tobacco products is not an easy task. Fortunately, there are a number of therapies available to assist in quitting of tobacco. It is important to remember that, while it will be difficult, ceasing to use tobacco has immediate health benefits, including increased life expectancy and reduced risk of tobacco related diseases and conditions.
    Matched MeSH terms: Mastication
  9. Fulltext The expression of retinoblastoma tumor suppressor protein in oral cancers and precancers: A clinicopathological study
    Thomas S, Balan A, Balaram P
    Dent Res J (Isfahan), 2015 Jul-Aug;12(4):307-14.
    PMID: 26288619 DOI: 10.4103/1735-3327.161427
    The role of retinoblastoma (Rb) protein in cell cycle regulation prompted us to take up this study with the aim of assessing its role in the progression of oral cancer and to correlate with various clinicopathological parameters, including habits such as smoking, Paan chewing, and alcoholism.
    Matched MeSH terms: Mastication
  10. Fulltext Detection of metabolomic profile of saliva in healthy Malaysian adults
    Lee, Han Hing, Lee, Chee Yen, Shoji, Yoshinobu, Chin, Hoe Teh
    Compendium of Oral Science, 2015;2(1):40-46.
    MyJurnal
    Background: Saliva is a readily accessible biofluid that is important for the overall quality of life, func-tionally essential in the chewing, swallowing, tasting, regulation mouth flora and prevention of caries. The aim of this study is to assess the global metabolomic profile of saliva in healthy Malaysian adults. Methods: As a first step to determining and understanding the metabolomic profile of saliva in healthy Malaysian adults, we have collected saliva samples of 50 adults and measured the salivary metabolite to establish a profiling metabolite data, Human Metabolome Database (HMDB). Metabolites concentrations of saliva in healthy subjects were measured by using 1H NMR spectroscopy. Results: The results showed there was no significant inter-individual variations of the key metabolites observed among the healthy Malaysian adults and there was no significant variation of the metabolites between female and male subjects. Conclusion: The metabolomic profile of saliva in healthy Malaysian adults could be used to establish the metabolomic database and used as a comparison for future study of the saliva of specific diseases.
    Matched MeSH terms: Mastication
  11. Color, sensory and textural attributes of beef frankfurter, beef ham and meat-free sausage containing tomato pomace
    Savadkoohi S, Hoogenkamp H, Shamsi K, Farahnaky A
    Meat Sci, 2014 Aug;97(4):410-8.
    PMID: 24769097 DOI: 10.1016/j.meatsci.2014.03.017
    The present investigation focuses on the textural properties, sensory attributes and color changes of beef frankfurter, beef ham and meat-free sausage produced by different levels of bleached tomato pomace. The texture and color profile were performed using an instrumental texture analyzer and colorimeter. The findings indicated that tomato pomace-added sausages had higher water holding capacity (WHC) compared to that of commercial samples. The frankfurters containing 5 and 7% (w/w) tomato pomace had the highest redness (a*), chroma (C*) and color differences (ΔE) values, while the meat-free sausages containing 7% (w/w) tomato pomace had significant (p<0.05) values for lightness (L*) and yellowness (b*). Furthermore, there were no significant (p>0.05) color differences between beef ham samples (with and without tomato pomace). A significant progression in the textural hardness and chewiness of systems containing tomato pomace was observed as well as higher sensory scores by panelists. According to sensorial evaluations, bleached tomato pomace improved the consumer acceptability and preference.
    Matched MeSH terms: Mastication
  12. Fulltext A review of epidemiological studies of oral cancer and precancer in Malaysia
    Zain, R.B., Ghazali, N.
    Ann Dent, 2001;8(1):-.
    MyJurnal
    This paper attempts to review epidemiological studies of oral cancer and precancer in Malaysia. The defmitions of prevalence, incidence, risk habits and oral cancer and precancers were discussed to better understand' the different types of studies conducted, which would be important in making comparisons between studies. Currently, epidemiological data on oral cancer in Malaysia are sketchy. The only incidence data for oral cancer in Malaysia was reported by Hirayama in 1966, 35 years ago. He estimated that 3.1 new cases per 100,000 population were diagnosed for the year 1963. A number of histopathological data of oral and maxillofacial biopsies were reported. Oral cancer accounted for one-fifth of all oral biopsies. A national study on oral mucosal lesions in Malaysia carried out in 1993/4 reported that there was a variation seen in the occurrence of oral premalignancy among the ethnic groups. The Indians and the indigenous people of Sabah and Sarawak were identified as high risk groups for oral cancer and precancer. It was also observed that both of the ethnic groups chewed betel quid. In conclusion, the epidemiological studies have provided useful data, which may be used in planning for future oral health programmes and research towards enhancing Malaysia's on-going effort in preventing the occurrence of these diseases.
    Matched MeSH terms: Mastication
  13. Fulltext Short-term acute effects of gutkha chewing on heart rate variability among young adults: A cross-sectional study
    Itagi AB, Arora D, Patil NA, Bailwad SA, Yunus GY, Goel A
    Int J Appl Basic Med Res, 2016 Jan-Mar;6(1):45-9.
    PMID: 26958522 DOI: 10.4103/2229-516X.174008
    An increase in the consumption of smokeless tobacco has been noticed among high school, college students, and adults. Despite the antiquity and popularity of chewing tobacco in India, its effects have not been investigated systematically in humans. The aim of this study was to investigate acute effects of gutkha chewing on heart rate variability (HRV) among healthy young adults.
    Matched MeSH terms: Mastication
  14. Aberrant proteins featured in the saliva of habitual betel quid chewers: an indication of early oral premalignancy?
    Jessie K, Jayapalan JJ, Rahim ZH, Hashim OH
    Electrophoresis, 2014 Dec;35(24):3504-11.
    PMID: 25223738 DOI: 10.1002/elps.201400252
    Prolonged chewing of betel quid is known to cause oral diseases, including cancer. The present study was performed to screen for aberrant proteins in the saliva of habitual betel quid chewers compared to nonchewers. Saliva of female subjects (n = 10) who had been chewing betel quid for more than 20 years and nonbetel quid chewers (n = 10) of the same gender and range of age was analyzed by gel-based proteomics. Increased structural microheterogeneity of saliva haptoglobin beta chains indicated by shifts of focused spots similar to that earlier reported in patients with oral squamous cell carcinoma, and their relatively higher abundance compared to nonbetel quid chewers, were detected in saliva protein profiles of all chewers. In addition, the majority of the betel quid chewers also showed significant higher abundance of hemopexin, alpha-1B glycoprotein, alpha1-antitrypsin, complement C3, and transthyretin. These proteins had previously been associated with several different cancers. Our data demonstrated different forms of protein aberration in the saliva of betel quid chewers, which may be indicative of early oral precancerous conditions.
    Matched MeSH terms: Mastication
  15. Use of image analysis in determining masticatory efficiency in patients presenting for immediate dentures
    Mahmood WA, Watson CJ, Ogden AR, Hawkins RV
    Int J Prosthodont, 1992 Jul-Aug;5(4):359-66.
    PMID: 1520458
    Image analysis was used to determine masticatory efficiency and performance before and after placement of immediate dentures. Sections of cored carrot were used as the test food and the particle size of chewed expectorated food was measured using image analysis. Measurements were shown to be accurate and reproducible. Masticatory function of immediate-denture patients was also compared with a similar number of dentate individuals and experienced complete-denture wearers. Dentate subjects were significantly (P less than .01) more efficient at masticating the test food than were the complete- or immediate-denture wearers. The new method of measurement removes the necessity for the unpleasant and unhygienic sieving process previously used in this type of study.
    Matched MeSH terms: Mastication*
  16. Fulltext Whole-Genome Sequencing of Pantoea sp. Strain RIT388, a Potential Oral Opportunistic Pathogen Isolated from a Chewing Stick (Distemonanthus benthamianus)
    Gan HM, Parthasarathy A, Henry KR, Savka MA, Thomas BN, Hudson AO
    Microbiol Resour Announc, 2020 Feb 27;9(9).
    PMID: 32107300 DOI: 10.1128/MRA.01468-19
    In this study, we report the isolation, identification, characterization, and whole-genome sequence of the endophyte Pantoea sp. strain RIT388, isolated from Distemonanthus benthamianus, a plant known for its antifungal and antibacterial properties that is commonly used for chewing sticks.
    Matched MeSH terms: Mastication
  17. Fulltext Whole genome sequencing of Rhodotorula mucilaginosa isolated from the chewing stick (Distemonanthus benthamianus): insights into Rhodotorula phylogeny, mitogenome dynamics and carotenoid biosynthesis
    Gan HM, Thomas BN, Cavanaugh NT, Morales GH, Mayers AN, Savka MA, et al.
    PeerJ, 2017;5:e4030.
    PMID: 29158974 DOI: 10.7717/peerj.4030
    In industry, the yeast Rhodotorula mucilaginosa is commonly used for the production of carotenoids. The production of carotenoids is important because they are used as natural colorants in food and some carotenoids are precursors of retinol (vitamin A). However, the identification and molecular characterization of the carotenoid pathway/s in species belonging to the genus Rhodotorula is scarce due to the lack of genomic information thus potentially impeding effective metabolic engineering of these yeast strains for improved carotenoid production. In this study, we report the isolation, identification, characterization and the whole nuclear genome and mitogenome sequence of the endophyte R. mucilaginosa RIT389 isolated from Distemonanthus benthamianus, a plant known for its anti-fungal and antibacterial properties and commonly used as chewing sticks. The assembled genome of R. mucilaginosa RIT389 is 19 Mbp in length with an estimated genomic heterozygosity of 9.29%. Whole genome phylogeny supports the species designation of strain RIT389 within the genus in addition to supporting the monophyly of the currently sequenced Rhodotorula species. Further, we report for the first time, the recovery of the complete mitochondrial genome of R. mucilaginosa using the genome skimming approach. The assembled mitogenome is at least 7,000 bases larger than that of Rhodotorula taiwanensis which is largely attributed to the presence of large intronic regions containing open reading frames coding for homing endonuclease from the LAGLIDADG and GIY-YIG families. Furthermore, genomic regions containing the key genes for carotenoid production were identified in R. mucilaginosa RIT389, revealing differences in gene synteny that may play a role in the regulation of the biotechnologically important carotenoid synthesis pathways in yeasts.
    Matched MeSH terms: Mastication
  18. Fulltext Surface Electromyography (sEMG) Activity of Masticatory Muscle (Masseter and Temporalis) with Three Different Types of Orthodontic Bracket
    Nishi SE, Rahman NA, Basri R, Alam MK, Noor NFM, Zainal SA, et al.
    Biomed Res Int, 2021;2021:6642254.
    PMID: 33969121 DOI: 10.1155/2021/6642254
    Objective: This pre-post study is aimed at determining the effects of masticatory muscle activity (masseter and temporalis) measured via sEMG between conventional, self-ligating, and ceramic bracket after six months of orthodontic treatment.

    Methods: A total of eighteen (18) malocclusion patients were identified. Malocclusion patients were subdivided into 3 groups based on the bracket selection (conventional, self-ligating, and ceramic bracket) with 6 patients for each group. sEMG of muscles were done using a two-channel electromyography device, where pregelled and self-adhesive electrodes (bilateral) were applied. Chewing and clenching of masseter and temporalis muscle activity were recorded for 20 s pre and 6 months of orthodontic treatment using sEMG (frequency 60 Hz). The data were analysed by using repeated measures ANOVA in IBM SPSS Statistics Version 24.0.

    Results: Chewing and clenching for masseter muscle showed no significant difference (P > 0.05) in sEMG activity of three types of the brackets. However, for temporalis muscle, there was a significant difference found in sEMG activity during chewing (P < 0.05) and clenching (P < 0.05) between these three brackets.

    Conclusion: The activity of temporalis muscle showed significant changes in chewing and clenching, where the conventional group demonstrated better muscle activity pre and at six months of fixed appliances.

    Matched MeSH terms: Mastication/physiology
  19. Fulltext Cu-sil Denture- A Space Maintainer for Function- In Paediatric Patients
    Hiremath S, Jairaj A
    J Clin Diagn Res, 2017 Mar;11(3):ZD09-ZD11.
    PMID: 28511521 DOI: 10.7860/JCDR/2017/22240.9385
    The purpose of this report is to introduce Cu-sil like denture as a functional space maintainer. Here, we report two paediatric cases treated with Cu-sil like denture with multiple edentulous spaces and partially erupted/compromised permanent teeth. Cu-sil like denture not only serves as removable partial functional space maintainer, but also restores the vertical dimension of occlusion, mastication and aesthetics in children. Cu-sil like denture is used in elderly patients who are not willing for extraction of remaining few healthy teeth in the oral cavity. This concept utilizes the remaining natural teeth in the arch, accommodates them within the denture through perforations made in the denture base. The gap between the denture base and the tooth is sealed using a resilient liner. Such denture is used for the paediatric age group in this report for functional rehabilitation temporarily. The report describes the pros and cons of the Cu-sil like denture use in children with technique of preparation along with review of literature.
    Matched MeSH terms: Mastication
  20. Concentrations of thiocyanate and hypothiocyanite in the saliva of young adults
    Jalil RA
    J Nihon Univ Sch Dent, 1994 Dec;36(4):254-60.
    PMID: 7869127
    The study was conducted to determine thiocyanate (SCN-) and hypothiocyanite (OSCN-) concentrations in resting (RWS) and stimulated whole saliva (SWS) and stimulated parotid saliva (SPS) of 20 healthy young adults aged 21-29 y. Samples of saliva were collected at 12:30, immediately before lunch. Resting saliva was collected by expectoration, and stimulated saliva was collected during the uniform chewing of paraffin wax. Parotid secretion was collected using a modified Carlsson-Crittenden cup (Carlsson et al., Am, J. Physiol., 26, 169-177, 1910). SCN- concentration was determined by the ferric nitrate method (Betts et al., J. Am. Chem. Soc., 75, 5721-5727, 1953) whilst OSCN- was assayed using 2-mercaptoethanol as a reducing agent (Pruitt et al., Caries Res., 16, 315-323, 1982). In RWS, SWS and SPS, the mean SCN- concentrations (in mM) were 1.48 +/- 0.59(S.D.), 0.90 +/- 0.56(S.D.) and 1.24 +/- 0.65(S.D.) whilst the mean OSCN- concentrations (in microM) were 31.21 +/- 13.54(S.D.), 24.90 +/- 12.61 and 30.19 +/- 23.35(S.D.) in the respective salivas. The presence of OSCN- in the secretion collected from the parotid gland supported previous findings by Tenovuo and Pruitt (Tenovuo et al., J. Oral Path, ol. 13, 573-584, 1984), who suggested an endogenous glandular (eukaryotic) source of hydrogen peroxide (H2O2), since parotid saliva from healthy glands is devoid of bacteria and leukocytes.
    Matched MeSH terms: Mastication
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