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Advances in Oral Management during Cancer Surgery, Radiotherapy, Chemotherapy, and Administration of Antiresorptive Agents

A special issue of International Journal of Environmental Research and Public Health (ISSN 1660-4601). This special issue belongs to the section "Oral Health".

Deadline for manuscript submissions: closed (16 September 2023) | Viewed by 4639

Special Issue Editor


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Guest Editor
Department of Oral Health, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8588, Japan
Interests: oral health; oral care; oral infectious diseases; dental caries

Special Issue Information

Dear Colleagues,

Various adverse events such as surgical site infection, postoperative pneumonia, oral mucositis, sepsis, osteoradionecrosis, and medication-related osteonecrosis of the jaw (MRONJ) occur during cancer treatment. Several interventional or observational studies have shown that some of these adverse events can be prevented by oral management, but it is necessary to standardize appropriate oral management methods and verify the evidence for their effectiveness. Regarding the prevention of MRONJ, some position papers recommended a drug holiday before tooth extraction or avoiding invasive dental treatment. However, despite these recommendations, the number of MRONJ occurrence and severe cases have been steadily increasing. Therefore, new strategies for preventing and treating MRONJ are urgently needed.

This Special Issue plans to give an overview of the most recent advances in the field of oral management in order to prevent adverse events during cancer treatment.

Dr. Sakiko Soutome
Guest Editor

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Keywords

  • oral care
  • cancer
  • surgery
  • radiotherapy
  • chemotherapy
  • antiresorptive agent
  • medication-related osteonecrosis of the jaw
  • osteoporosis
  • oral health
  • dental caries
  • periapical lesion
  • periodontal disease
  • tooth extraction
  • antibiotics
  • oral infectious diseases
  • oral and maxillofacial surgery
  • prophylaxis

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Published Papers (2 papers)

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Research

9 pages, 493 KiB  
Article
Number of Bacteria in Saliva in the Perioperative Period and Factors Associated with Increased Numbers
by Yuki Sakamoto, Arisa Tanabe, Makiko Moriyama, Yoshihiko Otsuka, Madoka Funahara, Sakiko Soutome, Masahiro Umeda and Yuka Kojima
Int. J. Environ. Res. Public Health 2022, 19(13), 7552; https://doi.org/10.3390/ijerph19137552 - 21 Jun 2022
Cited by 7 | Viewed by 2110
Abstract
Perioperative oral management is performed to prevent postoperative complications, but its indication and management method are unclear. This study aimed to investigate salivary bacterial counts pre-and postoperatively, and factors related to increased bacterial count postoperatively. We included 121 patients who underwent surgery under [...] Read more.
Perioperative oral management is performed to prevent postoperative complications, but its indication and management method are unclear. This study aimed to investigate salivary bacterial counts pre-and postoperatively, and factors related to increased bacterial count postoperatively. We included 121 patients who underwent surgery under general anesthesia and perioperative oral management. The bacterial count in saliva was determined preoperatively, and first and seventh days postoperatively using the dielectrophoresis and impedance measurement methods. The relationships between salivary bacterial count and various variables were analyzed using one-way analysis of variance, Spearman’s rank correlation coefficient, and multiple regression analysis. The salivary bacterial count increased significantly on the first day postoperatively but decreased on the seventh day. Multivariate analysis showed that age (p = 0.004, standardized coefficient β = 0.283) and xerostomia (p = 0.034, standardized coefficient β = 0.192) were significantly correlated with increased salivary bacterial count preoperatively. Salivary bacterial count on the day after surgery was significantly increased in patients with a large number of bacterial counts on the day before surgery after preoperative oral care (p = 0.007, standardized coefficient β = 0.241) and postoperative fasting (p = 0.001, standardized coefficient β = −0.329). Establishing good oral hygiene before surgery and decreasing salivary bacterial count are necessary in patients with a high risk of postoperative surgical site infection or pneumonia, especially in older adults or postoperative fasting. Full article
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14 pages, 6323 KiB  
Article
Factors Associated with Treatment Outcomes and Pathological Features in Patients with Osteoradionecrosis: A Retrospective Study
by Yoshiaki Tadokoro, Takumi Hasegawa, Daisuke Takeda, Aki Murakami, Nanae Yatagai, Eiji Iwata, Izumi Saito, Junya Kusumoto and Masaya Akashi
Int. J. Environ. Res. Public Health 2022, 19(11), 6565; https://doi.org/10.3390/ijerph19116565 - 27 May 2022
Cited by 2 | Viewed by 1832
Abstract
A standard treatment for osteoradionecrosis (ORN) has not yet been established because of the diversity. Therefore, identifying the risk factors for a poor prognosis is essential. This study retrospectively investigated the factors associated with the prognosis of ORN in 68 patients. Relevant clinical [...] Read more.
A standard treatment for osteoradionecrosis (ORN) has not yet been established because of the diversity. Therefore, identifying the risk factors for a poor prognosis is essential. This study retrospectively investigated the factors associated with the prognosis of ORN in 68 patients. Relevant clinical data of all patients were obtained. Of the patients, 16 who underwent extensive surgery underwent histopathological analysis. The necrotic changes of the anterior and posterior margins in the cortical and cancellous bones were investigated. Multivariate analyses showed statistically significant associations between poor prognosis in patients with ORN and high radiation dose (hazard ratio [HR] 1.15), orocutaneous fistula (HR 2.93), and absence of sequestration (HR 2.49). Histopathological analysis showed a viable anterior margin of the middle portion of the cortical bone for all recovered cases; in contrast, most cases (75%) with a poor prognosis showed necrotic changes. The anterior margin of the cancellous bone was viable and resilient to high irradiation, regardless of the prognosis. These results suggest that patients with orocutaneous fistula should receive early surgical intervention, even if the affected area is limited or asymptomatic. In extensive surgery, a sufficient safety margin of necrotic bone, particularly in the anterior region, is required to improve the prognosis. Full article
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