Evaluation of oral malodor in complete denture wearers

Postgraduate Thesis uoadl:2648243 431 Read counter

Unit:
Κατεύθυνση Διαγνωστική και Ακτινολογία Στόματος (Κλινικές Ειδικεύσεις)
Βιβλιοθήκη Οδοντιατρικής
Deposit date:
2018-02-01
Year:
2017
Author:
Yfanti Zafeiroula
Supervisors info:
Θεόδωρος Στεφανιώτης , Επίκουρος Καθηγητής, Τμήμα Οδοντιατρικής, Σχολή Επιστημών Υγείας, ΕΚΠΑ
Αικατερίνη Νικοπούλου - Καραγιάννη , Καθηγήτρια, Τμήμα Οδοντιατρικής, Σχολή Επιστημών Υγείας, ΕΚΠΑ
Γρηγόρης Πολυζώης , Καθηγητής, Τμήμα Οδοντιατρικής, Σχολή Επιστημών Υγείας, ΕΚΠΑ
Original Title:
Διερεύνηση της κακοσμίας του στόματος σε ασθενείς που φορούν ολικές οδοντοστοιχίες
Languages:
Greek
Translated title:
Evaluation of oral malodor in complete denture wearers
Summary:
OraI malodor is defined as the unpleasant odor that is produced in the oral cavity and caused by the metabolic activity of the microbial flora. The occurrence of oral malodor in subjects with free medical history is linked with the increased number of VSCs and is possibly due to the growth of the microbial load in the oral cavity. The result of this activity is the production of malodorous volatile sulfur compounds or VSCs which are: hydrogen sulfide (H2S), methyl mercaptan (CH3SH) and dimethylsulfide [(CH3)2S]. Oral malodor is mainly due to oral pathological causes such as coating on the dorsal surface of the tongue, inflammatory diseases of the periodontium, etc. and also to non-pathological such as the dental appliances and specifically the upper dentures in edentulous patients.

PURPOSE

The purpose of this study is to evaluate oral malodor in complete denture wearers and study the levels of the three volatile sulfur compounds and their correlation with the microbial load in the oral cavity.

MATERIAL AND METHODS

The study comprised 30 edentulous patients between the age of 50 and 70 years old. Initially the denture plaque index and the tongue coating index were assessed with a 0-3 score. Oral malodor was assessed with the sulphide device OralChromaTM that measured hydrogen sulfide, methyl mercaptan and dimethylsulfide in ppb. Patients were divided into two equal-numbered groups. The first group was instructed to daily cleaning of the tongue and brushing of the dentures. The second group was instructed to daily cleaning of the tongue, denture brushing and using denture cleaning tablets 2 times a week. After a two week interval in group 1 and group 2 both indexes and measurements were performed as initially.

RESULTS

Statistical analysis was performed with SPSS .17 and demonstrated a significant reduction of both indexes and VSC levels for both groups. A p value less than .05 was considered statically significant.

CONCLUSIONS

1. The values of the three volatile sulfur compounds (hydrogen sulfide, methyl mercaptan and dimethylsulfide) were increased comparatively to their threshold in patients that reported oral malodor and wore upper dentures for more than 3 years
2. During initial examination, the highest values were recorded for hydrogen sulfide and the lower for dimethylsulfide
3. During the second examination, the values of the three volatile sulfur compounds were significantly reduced for the patients of both groups
4. During the second examination, the highest decrease was recorded for hydrogen sulfide and the lowest for dimethylsulfide
5. During the second examination, the reduction of tongue coating index and denture plaque index for both groups was positively related to the decreased values of hydrogen sulfide, methyl mercaptan and dimethylsulfide
6. In edentulous patients, tongue coating and denture plaque increase the microbial load of the oral cavity and contribute as local factors to the appearance of oral malodor
Main subject category:
Health Sciences
Keywords:
Oral malodor, Volatile sulphur compounds, Denture wearers
Index:
No
Number of index pages:
0
Contains images:
Yes
Number of references:
134
Number of pages:
126
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