Assessment of the capacity of a pyrophosphate-based mouth rinse to inhibit the formation of supragingival dental calculus. A randomized double-blind placebo-controlled clinical trial

Investigation of the Relationship between Oral Human Papillomavirus Infection and Oral Health

Statement of the Problem

Oral health status has been suggested as one of the possible risk factors for oral human papillomavirus (OHPV) infection. There is inconsistent evidence concerning its relationship with the presence of OHPV.

Purpose

This study aimed to compare oral health status between two groups of patients with and without OHPV infection.

Materials and Method

This cross-sectional study was performed on 272 oral rinse samples, collected from our previous study population. After signing the written informed consents, the oral examination was performed to determine some clinical parameters of oral health status including periodontal disease status, oral hygiene status, decayed, missing, and filled teeth (DMFT) of participants. Next, viral deoxyribonucleic acid (DNA) extraction, polymerase chain reaction (PCR), and HPV genotyping tests were performed on the samples.

Results

OHPV DNA was detected in a total 31 (11.40%) samples that were considered as OHPV+ group. None of the determined clinical parameters of oral health status was significantly different between OHPV+ and OHPV DNA negative (OHPV-) groups (p> 0.05).

Conclusion

The findings of the current study did not indicate a significant association between oral health status and OHPV. Further studies with larger sample size are recommended to reach a definite conclusion.

Efficacy of bio-activated anti-calculus toothpaste on oral health: a single-blind, parallel-group clinical study

BACKGROUND

Current epidemiologic studies have confirmed the widespread presence of calculus in teenagers and adults of all ages. Among the multiple anti-calculus strategies that have been proposed over the years inhibition of crystal growth has been the most attractive. Current formulations in anti-calculus toothpastes and mothwash, utilise either hydroxyapatite or various pyrophosphate combinations. This study aimed to analyze the efficacy of an anti-calculus tooth paste in combination or not with a mouth rinse.

PATIENTS AND METHODS

Patients (totally 40) used a pyrophosphate-based toothpaste containing Tetrapotassium Pyrophosphate, Pentasodium Triphosphate, Xylitol, Hydroxyapatite, Citric Acid, And Calcium Carbonate (Group A) in combination, with a mouth rinse containing an association of Pentasodium Triphosphate, Tetrapotassium Pyrophosphate and Citric Acid (Group B). A range of parameters were measured for: saliva pH, Volpe Manhold Calculus Index (VMI), Gingival Index (GI), and Plaque Index (PI).

RESULTS

The test mouth rinse Group B showd reductions in VMI, GI, PI, and increases in pH levels, after using the combination of toothpaste and mouth rinse. No changes to the mucosa or teeth were observed in both Groups. Patients perceived that the comitation of products was more effective.

CONCLUSIONS

The results from the three-month calculus examination indicated that both the tested products, modified positively clincal parameters and salivary pH. Moreover, the use of the tested products was not associated with any adverse effects.

Analysis of Predisposing Factors for Rapid Dental Calculus Formation

Background: Calculus accumulation varies widely between individuals. Dental calculus has been associated with the principal periodontal diseases. The aim of this study was to analyze individual characteristics, and salivary and microbiological parameters among patients considered to be rapid calculus formers and patients who form calculus slowly. Methods: Individual characteristics were recorded in a sample of 74 patients (age, sex, smoking, periodontal diagnosis, and dental crowding), as well as salivary parameters (unstimulated saliva flow, pH, and biochemical analysis of saliva) and microbiological parameters (by means of semi-quantitative polymerase chain reaction (PCR) analysis). Results: A statistically significant association (p = 0.002) was found between the rate of calculus formation and the diagnosis of periodontal disease. A greater presence of dental crowding was observed among the group of rapid calculus formers. Urea and phosphorus levels were higher among rapid calculus formers. Regarding microbiological parameters, differences were found in Streptococcus mutans, this being higher in the group of slow formers. Conclusions: Rapid calculus formation appears to be linked to patients diagnosed with more severe periodontal diseases. Rapid calculus-forming patients present more dental crowding and a lower proportion of S. mutans.