Objective: The aim of this study was to evaluate the presence of human papillomavirus (HPV) in saliva rinses of patients with oral squamous cell carcinoma (OSCC)and to analyze the possibility of using saliva as a diagnostic method for screening high-risk patients. Study design: The saliva sample of 22 patients with oral squamous cell carcinoma and 20 age-sex matched healthy controls were obtained. The presence of HPV 6, 11, 16, 18, 31, and 33 was evaluated by polymerase chain reaction (PCR). Results: In 40.9% of the patients and in 25% of the controls, the saliva was shown to be positive for HPV. In 27.3% of the patients and in 20% of the controls, the saliva was shown to be positive for HPV16; and none of the controls, except one patient was shown to be positive for HPV 18. Neither patients nor controls were positive for HPV 31 and 33. These differences were not statistically significant. Conclusions: The results of this study were unable to support the detection of HPV in saliva rinses as a diagnostic method for OSCC.

Reactive lesion formation around dental implants a complication that has been given much consideration. These lesions can lead to marginal bone loss, and consequently, implant failure. In the present systematic review, all reported reactive lesions associated with dental implants in the literature were assessed. An electronic search was performed using PubMed Central, Scopus, Google Scholar, and Science Direct. The search strategy was limited to human studies (case reports and case series), full-text English language articles, published until May 2017. A total of 19 articles reporting 27 lesions in 25 cases were included. Peripheral giant cell granuloma and pyogenic granuloma were the most reactive lesions found around dental implants. The mean age of the patients was 51.28 ± 14.48 years, with a slight female predilection. Posterior mandibular gingiva was the most common location for these lesions. The recurrence rate of lesions was 33.33%, and the chance of implant removal was 29.62%. Due to the clinical significance of these lesions, early histopathologic examination is recommended to exclude the presence of such pathological lesions. K E Y W O R D Sdental implant, foreign bodies, peripheral giant cell granuloma, pyogenic granuloma, reactive oral lesion

Background. Several studies have shown the association between periodontitis and rheumatoid arthritis (RA) and some similarities in the pathogenesis of these two diseases but clinical trials which have evaluated the effect of periodontal therapy on clinical signs of active RA are scarce, particularly in Iran. The aim of this study was to evaluate the effect of non-surgical periodontal treatment on the improvement of clinical signs of patients with RA. Methods. Fifty-six patients with active RA and generalized moderate-to-severe chronic periodontitis were selected and divided into case (periodontal treatment) and control (without periodontal treatment) groups. Periodontal parameters and RA disease activity scores (DAS28 index) were compared at 6- and 12-week intervals. Results. In the case group, a significant reduction in all the periodontal indices was observed 6 weeks after treatment. At the 12-week evaluation, periodontal indices showed a significant reduction in comparison with baseline and a little increase in comparison with 6-week interval. Six weeks after treatment, DAS28 decreased significantly in the case group (P<0.05). DAS28 also decreased at 12-week interval but its reduction was not significant in comparison with 6-week interval. DAS28 in the case group at 12-week interval was significantly less than that in the control group (P<0.05). Conclusion. Since periodontal care as a part of treatment protocol in RA patients can be effective in improving clinical signs, the recall intervals are better to be 3 months or shorter.

Dental implant treatment in the posterior maxilla encounters bone quality and quantity problems. Sinus elevation is a predictable technique to overcome height deficiency in this area. Transalveolar sinus elevation is a technique that is less invasive and less time-consuming, first introduced for ridges with at least 5 mm of bone height. Many modifications and innovative equipment have been introduced for this technique. This review aimed to explain the modifications of this technique with their indications and benefits. An exhaustive search in PubMed Central and Scopus electronic databases was performed until December 2020. Articles were selected that introduced new techniques for the transalveolar maxillary sinus approach that had clinical cases with full texts available in the English language. Finally, twenty-six articles were included. The data were categorized and discussed in five groups, including expansion-based techniques, drill-based techniques, hydraulic pressure techniques, piezoelectric surgery, and balloon techniques. The operator’s choice for transalveolar approach techniques for sinus floor elevation can be based on the clinician’s skill, bone volume, and access to equipment. If possible, a technique with simultaneous implant placement should be preferred.

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Objectives: Papillon-Lefèvre syndrome (PLS) is a rare autosomal recessive disorder. These patients lose their teeth at a young age and are in need of prosthetic rehabilitation. The aim of this systematic review was to assess the success of dental implant placement in these patients. Materials and Methods: An electronic search was performed in PubMed Central, Scopus, and Web of Science using the keyword "Papillon-Lefèvre syndrome" AND "dental implant" OR "prosthodontics". Articles reporting implant placement in patients with PLS until July 2019 were included. Results: Assessment of the included 11 articles reporting 15 cases showed 136 implant placements in these patients. Implant failure occurred in 3 patients (20 implants). The peri-implantitis and failure rate was higher in the maxilla. Meta-analysis showed the probability of failure to be 7% (95% confidence interval [CI] 0%-31%) for maxillary implants and 2% (95% CI 0%-9%) for mandibular implants. The follow-up time ranged between 1 and 20 years. Healing after bone graft and implant placement in these patients was uneventful. Conclusion: Dental implants may be a viable treatment option for PLS patients. Implantation can help preserve alveolar bone if the patients' immunological and growing conditions are well-considered and proper oral hygiene and compliance with the maintenance program are continued.

Intraosseous lipoma is a very rare lesion, and the jaw is its least common bone location. Fibrolipoma is a microscopic variant of lipoma which is characterized by a significant fibrous component intermixed with lobules of fat cells. Intraosseous fibrolipoma of the jaw is a rare lesion, and to the best of our knowledge, only two cases have been reported from 1948 in English literature. This paper presents a 39-year-old man with a chief complaint of tooth displacement in the anterior region of the mandible. Radiographic evaluation revealed a unilocular radiolucent lesion with sclerotic borders located between the left lateral incisor and canine. Histopathologic evaluation after an excisional biopsy confirmed the diagnosis of intraosseous fibrolipoma. We also reviewed the literature on this rare lesion.

Background. Preventive dentistry, including supportive periodontal therapy (SPT), is one of the most critical areas of attention. Despite SPT’s importance in the long-term success of periodontal treatment, the patients’ adherence to it is weak. The present study aimed to evaluate of periodontal disease’s recurrence rate and its related factors in periodontal patients without regular follow-up. Methods. A cross-sectional study was set in a specialized periodontics clinic in Tehran, Iran. Patients with periodontitis who completed periodontal therapy during 2005–2014 and did not adhere to the maintenance phase were evaluated. The periodontal history of the patients was updated. The previous diagnoses of patients according to their previous periodontal charts were revised by AAP 2015 criteria. Then, periodontal parameters were assessed, and current periodontal status was evaluated. Statistical analyses consisted of Fisher’s exact test, t-test, Man-Whitney test, and Kruskal-Wallis test. Spearman’s correlation coefficient was used to assess the relationship between factors and variables. Results. Fifty patients were evaluated, including 29 males and 21 females. There was a significant relationship between the initial diagnosis and recurrence rate of periodontitis (P=0.017). There was also a significant relationship between the recurrence of periodontitis and the years elapsed since the initial treatment (P=0.027, r = 0.353). Smoking significantly affected tooth loss (P=0.001). Conclusion. Patients with severe periodontitis need more attention to participate in supportive periodontal care. The patients must be aware of the disadvantages of neglecting this phase and be reminded of regular follow-up.