Case report: Sepsis secondary to infected protracted parotid sialocele after maxillofacial oncologic surgery in a dog

An 8-year-old male intact mixed breed dog was treated for a 3.7×3×3.6 cm grade 1 multilobular osteochondrosarcoma (MLO) arising from the dorsal aspect of the right coronoid process with a coronoidectomy, a zygomectomy, and a caudal maxillectomy. Ten months later, the dog presented for a swelling near the right angular process, which was presumed to be a locoregional recurrence. Blood work and initial staging tests (abdominal ultrasound) had mild abnormalities of no clinical concern/significance. The dog was hospitalized with a plan for computed tomographic (CT) scan of skull and chest the following day. Overnight, the swelling rapidly increased, and the dog became laterally recumbent, febrile, and hypotensive. Laboratory evaluation revealed hypoglycemia, elevated lactate, and elevated band neutrophils with moderate toxicity, most consistent with sepsis. The dog was stabilized with fluid resuscitation, intravenous (IV) antibiotics, IV dextrose, and pressor support. Once stabilized, a contrast CT scan was performed, which revealed evidence of an infected parotid gland sialocele. To our knowledge, this is the first veterinary case that describes sepsis secondary to an infected protracted parotid sialocele.

World Workshop on Oral Medicine VIII-barriers to research in oral medicine: lessons learned from a bibliometric analysis of the oral potentially malignant disorders literature

OBJECTIVE

This study aimed to assess the impact of oral medicine (OM) practitioners on the literature regarding oral potentially malignant disorders (OPMDs), focusing on oral leukoplakia.

STUDY DESIGN

Using a bibliometric approach on the Scopus database until September 1, 2022, the top 100 cited articles were analyzed for article type, subtopic, specialty contributions, author metrics, and keywords. The Bibliometrix package for R and VOSviewer were used to evaluate interactions and generate science maps.

RESULTS

OM practitioners, comprising 39% of contributors, played a significant role in studies related to nomenclature and screening of OPMDs. Notably, 4 OM specialists ranked among the most prolific authors, demonstrating denser collaboration with OM co-authors compared to other cancer specialists. However, there was a scarcity of OPMD management studies authored by OM practitioners.

CONCLUSIONS

Despite the paucity of OM practitioners, the findings underscored the substantial contribution of OM practitioners in developing OPMD nomenclature and classification, emphasizing the need for increased collaboration with cancer specialists to conduct comprehensive clinical trials for OPMD management. The study highlights the importance of standardized criteria in OPMDs research for better data comparison and encourages further efforts from the OM scientific community.

Antibiotic Prophylaxis and Infective Endocarditis Incidence Following Invasive Dental Procedures: A Systematic Review and Meta-Analysis

Importance

The association between antibiotic prophylaxis and infective endocarditis after invasive dental procedures is still unclear. Indications for antibiotic prophylaxis were restricted by guidelines beginning in 2007.

Objective

To systematically review and analyze existing evidence on the association between antibiotic prophylaxis and infective endocarditis following invasive dental procedures.

Data Sources

PubMed, Cochrane-CENTRAL, Scopus, Web of Science, Proquest, Embase, Dentistry and Oral Sciences Source, and ClinicalTrials.gov were systematically searched from inception to May 2023.

Study Selection

Studies on the association between antibiotic prophylaxis and infective endocarditis following invasive dental procedures or time-trend analyses of infective endocarditis incidence before and after current antibiotic prophylaxis guidelines were included.

Data Extraction and Synthesis

Study quality was evaluated using structured tools. Data were extracted by independent observers. A pooled relative risk (RR) of developing infective endocarditis following invasive dental procedures in individuals who were receiving antibiotic prophylaxis vs those who were not was computed by random-effects meta-analysis.

Main Outcomes and Measures

The outcome of interest was the incidence of infective endocarditis following invasive dental procedures in relation to antibiotic prophylaxis.

Results

Of 11 217 records identified, 30 were included (1 152 345 infective endocarditis cases). Of them, 8 (including 12 substudies) were either case-control/crossover or cohort studies or self-controlled case series, while 22 were time-trend studies; all were of good quality. Eight of the 12 substudies with case-control/crossover, cohort, or self-controlled case series designs performed a formal statistical analysis; 5 supported a protective role of antibiotic prophylaxis, especially among individuals at high risk, while 3 did not. By meta-analysis, antibiotic prophylaxis was associated with a significantly lower risk of infective endocarditis after invasive dental procedures in individuals at high risk (pooled RR, 0.41; 95% CI, 0.29-0.57; P for heterogeneity = .51; I2, 0%). Nineteen of the 22 time-trend studies performed a formal pre-post statistical analysis; 9 found no significant changes in infective endocarditis incidence, 7 demonstrated a significant increase for the overall population or subpopulations (individuals at high and moderate risk, streptococcus-infective endocarditis, and viridans group streptococci-infective endocarditis), whereas 3 found a significant decrease for the overall population and among oral streptococcus-infective endocarditis.

Conclusions and Relevance

While results from time-trend studies were inconsistent, data from case-control/crossover, cohort, and self-controlled case series studies showed that use of antibiotic prophylaxis is associated with reduced risk of infective endocarditis following invasive dental procedures in individuals at high risk, while no association was proven for those at low/unknown risk, thereby supporting current American Heart Association and European Society of Cardiology recommendations. Currently, there is insufficient data to support any benefit of antibiotic prophylaxis in individuals at moderate risk.

Factors associated with oral hygiene compliance in patients treated with radiation therapy for head and neck cancer

BACKGROUND

Patients who are oral hygiene noncompliant (OHNC) are more likely to lose teeth after radiation therapy (RT) for head and neck cancer (HNC), which increases the risk of developing osteoradionecrosis. A previous study revealed that patients who were OHNC at baseline (BL) who became oral hygiene compliant during follow-up had the best tooth-failure outcomes. The purpose of this study was to identify factors associated with oral hygiene compliance (OHC), overall, and among those who were BL OHNC.

METHODS

This was an observational, prospective, cohort study of 518 patients with HNC assessed before RT and at post-RT follow-up visits every 6 months for 2 years. Patient and treatment-related information was collected at BL and during follow-up, including self-reported OHC. OHC was defined as toothbrushing at least twice daily and flossing at least once daily.

RESULTS

Of the 296 patients who self-reported being BL OHNC, 44 (14.9%) became oral hygiene compliant at all follow-up visits. Among this group, those who had dental insurance (P = .026), surgery before RT (P = .008), limited mouth opening before RT (P = .001), compliant fluoride use (P = .023), primary RT site of oral cavity (P = .004), and primary surgical site of larynx and hypopharynx (P = .042) were more likely to become oral hygiene compliant post-RT.

CONCLUSIONS

The reasons for the cohort of patients with HNC in this study being OHNC are multifaceted and relate to socioeconomic factors and cancer characteristics.

PRACTICAL IMPLICATIONS

Finding ways to increase OHC and fluoride use among patients with HNC who are at greatest risk of being OHNC should be explored.

Common Oral Conditions: A Review

Importance

Dry mouth, oral candidiasis, and recurrent aphthous ulcers are 3 of the most common oral conditions that may be associated with patient discomfort, decreased quality of life, and morbidity.

Observations

In a meta-analysis of 26 population-based cohort and cross-sectional studies, the global prevalence of dry mouth symptoms was 23% (95% CI, 18% to 28%), placing individuals at risk of oral candidiasis, dental caries, dysgeusia, masticatory/speech impairment, and oropharyngeal dysphagia. Dry mouth is associated with using more than 3 oral medications per day (odds ratio [OR], 2.9 [95% CI, 1.4 to 6.2]), head and neck radiation, and Sjögren disease. Symptoms may include difficulty swallowing and speaking, thirst, and halitosis. Dry mouth is associated with an 11.5% (95% CI, 3.6% to 27%) higher risk of oral candidiasis, based on a meta-analysis of 6 observational cohorts. Management of dry mouth includes mechanical salivary stimulants, oral moisturizers, and/or systemic sialagogues. Oral candidiasis is an opportunistic fungal infection caused by overgrowth of the Candida genus with C albicans, which accounts for 76.8% of infections. The prevalence of oral candidiasis is higher in patients who are immunosuppressed, for example, those with HIV (35% [95% CI, 28% to 42%]) and those with salivary gland hypofunction (OR, 3.02 [95% CI, 1.73 to 5.28]). Common risk factors associated with oral candidiasis include use of antibiotics (P = .04) and oral mucosal disorders such as lichen planus. Oral burning and dysgeusia are common symptoms of oral candidiasis. Treatment includes addressing risk factors and use of topical and/or systemic antifungal medications. Recurrent aphthous stomatitis is characterized by symptomatic round or oval oral ulcers, which are covered by a gray-white fibrin layer and encircled by an erythematous ring. A meta-analysis of 10 case-controlled studies revealed an increased risk of recurrent aphthous stomatitis associated with polymorphism of IL-1β (+3954C/T) (OR, 1.52 [95% CI, 1.07 to 2.17]) and IL-1β (-511C/T) (OR, 1.35 [95% CI, 1.09 to 1.67]). Another meta-analysis of 9 case-control studies reported that patients with recurrent aphthous stomatitis had a higher frequency of nutritional deficiencies, including vitamin B12 (OR, 3.75 [95% CI, 2.38 to 5.94]), folic acid (OR, 7.55 [95% CI, 3.91 to 14.60]), and ferritin (OR, 2.62 [95% CI, 1.69 to 4.06]). Recurrent aphthous stomatitis can be associated with systemic diseases. A meta-analysis of 21 case-control studies revealed that celiac disease is associated with a higher incidence of recurrent aphthous stomatitis (25% vs 11%; OR, 3.79 [95% CI, 2.67 to 5.39]; P <.001). Topical corticosteroids are first-line agents to manage recurrent aphthous stomatitis; however, systemic medications may be necessary in more severe cases.

Conclusions and Relevance

Dry mouth, oral candidiasis, and recurrent aphthous ulcers are common oral conditions that may be associated with patient discomfort, decreased quality of life, and morbidity. First-line treatment includes over-the-counter sialagogues for dry mouth, topical antifungals for oral candidiasis, and topical corticosteroids for aphthous ulcers. Oral conditions that do not improve with first-line treatment may require treatment with systemic medications.

Reduced mouth opening in patients with head and neck cancer treated with radiation therapy: an analysis of the Clinical Registry of Dental Outcomes in Head and Neck Cancer Patients (OraRad)

OBJECTIVE

Trismus/reduced mouth opening (RMO) is a common side effect of radiotherapy (RT) for head and neck cancer (HNC). The objective was to measure RMO, identify risk factors for RMO, and determine its impact on quality of life (QOL).

STUDY DESIGN

OraRad is an observational, prospective, multicenter cohort study of patients receiving curative intent RT for HNC. Interincisal mouth opening measurements (n = 565) and patient-reported outcomes were recorded before RT and every 6 months for 2 years. Linear mixed-effects models were used to evaluate change in mouth opening and assess the relationship between trismus history and change in QOL measures.

RESULTS

Interincisal distance decreased from a mean (SE) of 45.1 (0.42) mm at baseline to 42.2 (0.44) at 6 months, with slight recovery at 18 months (43.3, 0.46 mm) but no additional improvement by 24 months. The odds of trismus (opening <35 mm) were significantly higher at 6 months (odds ratio [OR] = 2.21, 95% CI: 1.30 to 3.76) and 12 months (OR = 1.87, 95% CI: 1.08 to 3.25) compared with baseline. Females were more likely to experience trismus at baseline and during follow-up (P < .01). Patients with oral cavity cancer had the highest risk for trismus at baseline and post-RT (P < .01). RMO was associated with higher RT dose to the primary site and receiving concomitant chemotherapy (P < .01). Trismus was associated with self-reported difficulty opening the mouth and dry mouth (P < .01).

CONCLUSIONS

A decrease in mouth opening is a common treatment-related toxicity after RT, with some recovery by 18 months. Trismus has a significant impact on survivor QOL.

Oral mucous membrane pemphigoid: updates in diagnosis and management

Mucous membrane pemphigoid (MMP) is a rare, immune-mediated, vesiculobullous disease that predominantly affects the oral cavity and conjunctiva. In MMP, autoantibodies are directed against hemidesmosomal proteins in the basement membrane zone, most commonly BP180. Clinical signs and symptoms include gingival desquamation, erosions, and ulcerations. Differential diagnoses include other immune-mediated blistering diseases, such as bullous pemphigoid. Definitive diagnosis is reached through history taking, physical examination, tissue biopsy and/or serology testing. MMP, although not curable, is typically managed with topical or systemic corticosteroids, in addition to immunosuppressive therapies and biologic agents in recalcitrant cases. Untreated MMP can lead to life-threatening complications, such as blindness. As a condition that affects the oral cavity, it is important that dentists understand how to recognise, diagnose and manage the disease.

World Workshop on Oral Medicine VIII: Barriers to research in oral medicine: results from a global survey

OBJECTIVES

To explore factors influencing research interest and productivity and perceived barriers to conducting research in Oral Medicine (OM).

METHODS

Invitations to participate in an online survey were e-mailed to a network of international OM practitioners and related professional organizations. Questions captured respondents' demographic/professional variables and gauged research interest, productivity, and perceived barriers to conducting research specifically in OM. Statistical analysis was conducted via descriptive, logistic regression, and multivariate modeling.

RESULTS

Five hundred and ninety-three OM practitioners from 55 countries completed the survey, with 54%, 25%, and 21% practicing in high, upper-middle, and lower-middle-income countries, respectively. Eighty-six percent of respondents were interested in conducting research. Age (less interest with an increase in age), working in academia, and practicing in a lower-middle vs high-income country were significant predictors of research interest. Self-reported research productivity was significantly greater among males, those working in academia, and those who graduated from programs that mandated research presentation/publication. Obtaining research funding was a significant barrier among respondents from lower and upper-middle-income countries, whereas finding time for research was a reported barrier by respondents from high-income countries.

CONCLUSION

The results of this survey identified perceived barriers to conducting research in OM and highlighted solutions to address such barriers.

Tooth-level predictors of tooth loss and exposed bone after radiation therapy for head and neck cancer

BACKGROUND

The objective of this study was to identify tooth-level risk factors for use during preradiation dental care management to predict risk of tooth failure (tooth lost or declared hopeless) and exposed bone after radiation therapy (RT) for head and neck cancer (HNC).

METHODS

The authors conducted a prospective observational multicenter cohort study of 572 patients receiving RT for HNC. Participants were examined by calibrated examiners before RT and then every 6 months until 2 years after RT. Analyses considered time to tooth failure and chance of exposed bone at a tooth location.

RESULTS

The following pre-RT characteristics predicted tooth failure within 2 years after RT: hopeless teeth not extracted pre-RT (hazard ratio [HR], 17.1; P < .0001), untreated caries (HR, 5.0; P < .0001), periodontal pocket 6 mm or greater (HR, 3.4; P = .001) or equaling 5 mm (HR, 2.2; P = .006), recession over 2 mm (HR, 2.8; P = .002), furcation score of 2 (HR, 3.3; P = .003), and any mobility (HR, 2.2; P = .008). The following pre-RT characteristics predicted occurrence of exposed bone at a tooth location: hopeless teeth not extracted before RT (risk ratio [RR], 18.7; P = .0002) and pocket depth 6 mm or greater (RR, 5.4; P = .003) or equaling 5 mm (RR, 4.7; P = .016). Participants with exposed bone at the site of a pre-RT dental extraction averaged 19.6 days between extraction and start of RT compared with 26.2 days for participants without exposed bone (P = .21).

CONCLUSIONS

Individual teeth with the risk factors identified in this study should be considered for extraction before RT for HNC, with adequate healing time before start of RT.

PRACTICAL IMPLICATIONS

The findings of this trial will facilitate evidence-based dental management of the care of patients receiving RT for HNC. This clinical trial was registered at Clinicaltrials.gov. The registration number is NCT02057510.

World Workshop on Oral Medicine VIII: Dentists' compliance with infective endocarditis prophylaxis guidelines for patients with high-risk cardiac conditions: a systematic review

OBJECTIVE

To determine dentists' awareness and/or adherence to antibiotic prophylaxis (AP) guidelines for preventing infective endocarditis (IE) in patients with high-risk heart conditions.

STUDY DESIGN

A systematic literature review was performed on MEDLINE/PubMed, Scopus, Web of Science, Cochrane Library, Proquest, Embase, Dentistry, and Oral Sciences Source databases, following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses checklist. Nationwide studies based on questionnaires, surveys, and interviews completed by dentists and published since 2007 were included.

RESULTS

From 2907 articles screened, 28 studies were selected (across 20 countries). The quality of included studies was poor due to a lack of standard evaluation tools, low response rates, and lack of questionnaire validity and/or reliability. Approximately 75% of surveyed dentists reported being knowledgeable about AP guidelines, but only ∼25% complied. Reported compliance with American Heart Association (AHA) guidelines was 4 times higher than with the National Institute for Health and Care Excellence (NICE) recommendations. Some of the highest adherence rates were reported for other national AP guidelines. Significant geographic differences were observed in the estimated adherence to AHA guidelines and the percentage of dentists who reported seeking advice from physicians and/or cardiologists.

CONCLUSION

Rates of compliance and/or adherence were substantially different from rates of knowledge and/or awareness, including relevant geographic dissimilarities. Compliance/adherence was higher for AHA than NICE.

Oral health-related quality of life after radiation therapy for head and neck cancer: the OraRad study

PURPOSE

Head and neck cancer (HNC) treatment results in morbidity impacting quality of life (QOL) in survivorship. This analysis evaluated changes in oral health-related QOL (OH-QOL) up to 2 years after curative intent radiation therapy (RT) for HNC patients and factors associated with these changes.

METHODS

572 HNC patients participated in a multicenter, prospective observational study (OraRad). Data collected included sociodemographic, tumor, and treatment variables. Ten single-item questions and 2 composite scales of swallowing problems and senses problems (taste and smell) from a standard QOL instrument were assessed before RT and at 6-month intervals after RT.

RESULTS

The most persistently impacted OH-QOL variables at 24 months included: dry mouth; sticky saliva, and senses problems. These measures were most elevated at the 6-month visit. Aspects of swallowing were most impacted by oropharyngeal tumor site, chemotherapy, and non-Hispanic ethnicity. Problems with senses and dry mouth were worse with older age. Dry mouth and sticky saliva increased more among men and those with oropharyngeal cancer, nodal involvement, and use of chemotherapy. Problems with mouth opening were increased by chemotherapy and were more common among non-White and Hispanic individuals. A 1000 cGy increase in RT dose was associated with a clinically meaningful change in difficulty swallowing solid food, dry mouth, sticky saliva, sense of taste, and senses problems.

CONCLUSIONS

Demographic, tumor, and treatment variables impacted OH-QOL for HNC patients up to 2 years after RT. Dry mouth is the most intense and sustained toxicity of RT that negatively impacts OH-QOL of HNC survivors.

CLINICALTRIALS

GOV IDENTIFIER

NCT02057510; first posted February 7, 2014.

World Workshop on Oral Medicine VIII: Development of a Core Outcome Set for Oral Lichen Planus: A Systematic Review of Outcome Domains

OBJECTIVE

There is a lack of consensus regarding clinician- and patient-reported oral lichen planus (OLP) outcomes. The World Workshop on Oral Medicine Outcomes Initiative for the Direction of Research (WONDER) Project aims to develop a core outcome set (COS) for OLP, which would inform the design of clinical trials and, importantly, facilitate meta-analysis, leading to the establishment of more robust evidence for the management of this condition and hence improved patient care.

STUDY DESIGN

Ovid MEDLINE, Embase, CINAHL, CENTRAL, and Clinicaltrials.gov were searched for interventional studies (randomized controlled trials, controlled clinical trials, and case series including ≥5 participants) on OLP and oral lichenoid reactions published between January 2001 and March 2022 without language restriction. All reported primary and secondary outcomes were extracted.

RESULTS

The searches yielded 9,135 records, and 291 studies were included after applying the inclusion criteria. A total of 422 outcomes were identified. These were then grouped based on semantic similarity, condensing the list to 69 outcomes. The most frequently measured outcomes were pain (51.9%), clinical grading of the lesions (29.6%), lesion size/extension/area (27.5%), and adverse events (17.5%).

CONCLUSION

As a first step in developing a COS for OLP, we summarized the outcomes that have been used in interventional studies over the past 2 decades, which are numerous and heterogeneous.

Quality of life in patients with oral potentially malignant disorders: oral lichen planus and oral epithelial dysplasia

OBJECTIVE

The aim of this study was to evaluate and compare quality of life (QoL) parameters in patients with oral potential malignant disorders (OPMDs), namely, oral lichen planus (OLP) and oral epithelial dysplasia (OED).

STUDY DESIGN

A cross-sectional study was completed at the oral maxillofacial surgery/oral medicine practices at University of Pennsylvania. Patients with clinical and histopathologic confirmation of OLP or OED from January to June 2021 were included in the study. The primary predictor variable was the OPMD type. The primary outcome variable was the score of 3 separate surveys: the Chronic Oral Mucosal Disease Questionnaire-26 (COMDQ-26), Oral Potential Malignant Disorder QoL Questionnaire (OPMDQoL), and Hospital Anxiety and Depression Scale. Multiple linear regression was used to determine independent predictors of increased/decreased questionnaire scores.

RESULTS

The final study sample consisted of 100 patients:53 patients had OLP (53.0%), 39 patients had OED (39.0%), and 8 patients had OLP with OED (8.0%). Relative to OED, OLP added 15.7 points to the COMDQ-26 survey score (P < .001). Relative to OED, OLP added 8.9 points to the OPMDQoL survey score (P = .003).

CONCLUSIONS

Oral lichen planus shows significantly poorer QoL specifically within the COMD-26 and OPMDQoL questionnaires, compared with OED. Additionally, patients with OPMDs aged 40 to 64 years were independently associated with higher COMD-26 scores compared with older patients (>65 years).

World Workshop on Oral Medicine VIII: Development of a Core Outcome Set for Oral Lichen Planus: The Patient Perspective

OBJECTIVE

This study aimed to explore the lived experience of patients with oral lichen planus (OLP) and investigate what treatment-related outcomes are the most important to them and should be included in a core outcome set (COS) for OLP.

STUDY DESIGN

A qualitative study involving focus group work with 10 participants was conducted. Interviews with each focus group were held twice: session 1 explored the lived experience of patients with OLP, and session 2 allowed patients to review a summary of the outcome domains used in the OLP literature to date. The discussions were recorded, transcribed verbatim, and analyzed using framework analysis.

RESULTS

In session 1, 4 themes and 8 sub-themes emerged from the data analysis. An additional outcome, 'knowledge of family and friends,' was suggested in session 2.

CONCLUSIONS

We have gained valuable insight into the lived experience of patients with OLP via this qualitative study. To our knowledge, this study is the first to explore the patient perspective on what should be measured in clinical trials on OLP, highlighting an important additional suggested outcome. This additional outcome will be voted upon in a consensus process to determine a minimum COS for OLP.

Oral manifestations of anti-neutrophil cytoplasmic antibody-associated vasculitis: an update and narrative review of the literature

Anti-neutrophil cytoplasmic antibody-associated vasculitis (AAV) is a multisystem disorder of small blood vessels subdivided into granulomatosis with polyangiitis (GPA), microscopic polyangiitis (MPA), and eosinophilic granulomatosis with polyangiitis (EGPA). Oral manifestations (OMs) have been reported to include mucosal ulceration, gingival enlargement, alveolar bone necrosis, tooth loss, oro-antral communication, palatal perforation, parotitis, and candidal infection mainly in GPA. They may appear during the course of the disease, as a disease flare-up, or as the presenting sign. These OMs are often nonspecific and can mimic an array of conditions, therefore formulating a differential diagnosis can be challenging. This review updates the OMs of GPA, and, for the first, time includes OMs of other AAVs. It provides recommendations for the overall assessment and the diagnosis and management of all AAV OMs with considerations for treatment coordination. The role of oral health care providers in multidisciplinary care is highlighted.

World Workshop on Oral Medicine VII: Oral adverse effects to biologic agents in patients with inflammatory disorders. A scoping review

BACKGROUND

Biologic agents are rapidly emerging as an effective therapy to treat autoimmune and other chronic diseases. The use of these agents is poorly characterized, resulting in a lack of guidance for dental practitioners. Case reports of oral adverse events have begun to emerge. However, their scope and frequency have not been summarized and analysed to date. The objective of this review was to characterize the literature on oral adverse effects associated with biological therapy when used for autoimmune and inflammatory disorders.

METHODS

This review was developed in accordance with scoping review recommendations. Search strategies were developed and employed for six databases. Studies were selected using a systematic search process but with broad inclusion of study types given the paucity of information available. Reports of oral adverse events were analysed descriptively according to agent, mechanism of action, underlying disease, and oral adverse effect observed.

RESULTS

Our search returned 2080 articles and 51 met our inclusion criteria, of which most were case reports. The most frequent adverse effects included angioedema, oral lichenoid lesions, osteonecrosis of the jaw, and oral infections. There were also cases of oral malignancies associated with use of biologic agents. Less common effects such as pigmentation were also described.

CONCLUSIONS

Oral adverse events have been reported in patients on biologic therapy, albeit in small numbers to date. This limits the generalizability of these results, which should not be used to generate a clinical guideline as they are based primarily on case reports. However, this study presents the first review characterizing the adverse effects observed. Large multi-center studies will be necessary to further define the oral and dental complications caused by biologic agents.

Radiation therapy for head and neck cancer leads to gingival recession associated with dental caries

OBJECTIVE

The aim of this study was to examine effects of radiation therapy (RT) for head and neck cancer (HNC) on periodontal disease and relationships to caries.

STUDY DESIGN

A multicenter prospective observational cohort study (OraRad) was conducted in patients undergoing RT for HNC. Assessments were conducted by calibrated examiners at the pre-RT (baseline) visit (n = 533), the 12-month visit (n = 414), and the 24-month visit (n = 365).

RESULTS

The average whole mouth mean (standard error (SE)) distance from the cementoenamel junction to the gingival margin (CEJ-GM) decreased significantly from 0.43 (0.04) mm at baseline to 0.24 (0.04) mm at 12 months and 0.11 (0.04) mm at 24 months (P ≤ .001). Whole mouth mean (SE) percentage of sites with CEJ-GM distance of <0 mm increased significantly from 23.3% (1.0%) at baseline to 28.5% (1.0%) at 12 months and 30.5% (1.1%) at 24 months (P ≤ .02). Higher mean radiation dose to the mandible was associated with a greater increase in the percentage of mandibular sites with CEJ-GM distance of <0 mm (P = .003). Both mean CEJ-GM distance and the percentage of sites with a CEJ-GM distance <0 mm were strongly associated with whole mouth mean proportion of decayed, missing, and filled surfaces, as well as proportion of decayed or filled facial/buccal surfaces specifically, (P < .001), with greater gingival recession associated with increased caries.

CONCLUSIONS

RT for HNC leads to mandibular gingival recession in a dose-dependent manner. This gingival recession may contribute to increased risk for cervical caries seen in these patients.

Dental Caries Postradiotherapy in Head and Neck Cancer

BACKGROUND

Treatment for head and neck cancer (HNC) such as radiotherapy (RT) can lead to numerous acute and chronic head and neck sequelae, including dental caries. The goal of the present study was to measure 2-y changes in dental caries after radiotherapy in patients with HNC and test risk factors for caries increment.

METHODS

Cancer and dental disease characteristics, demographics, and oral health practices were documented before and 6, 12, 18, and 24 mo after the start of RT for 572 adult patients with HNC. Patients were eligible if they were age 18 y or older, diagnosed with HNC, and planned to receive RT for treatment of HNC. Caries prevalence was measured as decayed, missing, and filled surfaces (DMFS). The association between change in DMFS and risk factors was evaluated using linear mixed models.

RESULTS

On average, DMFS increased from baseline to each follow-up visit: 6 mo, +1.11; 12 mo, +2.47; 18 mo, +3.43; and 24 mo, +4.29 (P < 0.0001). The increase in DMFS during follow-up was significantly smaller for the following patient characteristics: compliant with daily fluoride use (P = 0.0004) and daily oral hygiene (brushing twice daily and flossing daily; P = 0.015), dental insurance (P = 0.004), and greater than high school education (P = 0.001). DMFS change was not significantly associated with average or maximum RT dose to the parotids (P > 0.6) or salivary flow (P > 0.1). In the subset of patients who had salivary hypofunction at baseline (n = 164), lower salivary flow at follow-up visits was associated with increased DMFS.

CONCLUSION

Increased caries is a complication soon after RT in HNC. Fluoride, oral hygiene, dental insurance, and education level had the strongest association with caries increment after radiotherapy to the head and neck region. Thus, intensive oral hygiene measures, including fluoride and greater accessibility of dental care, may contribute to reducing the caries burden after RT in HNC.

KNOWLEDGE TRANSFER STATEMENT

The results of this study can be used by clinicians when deciding how to minimize oral complications related to cancer therapy for patients with head and neck cancer. Identification of modifiable factors (e.g., oral hygiene and prescription fluoride compliance) associated with increased caries risk can minimize radiation caries burden.

The impact of head and neck radiotherapy on salivary flow and quality of life: Results of the ORARAD study

OBJECTIVES

Salivary hypofunction and xerostomia, are common side effects of radiotherapy, negatively impacting quality of life. The OraRad study presents results on the longitudinal impact of radiotherapy on salivary flow and patient-reported outcomes.

PATIENTS AND METHODS

Prospective, multicenter cohort study of 572 patients receiving curative-intent head and neck radiotherapy (RT). Stimulated salivary flow (SSF) rate and patient-reported outcomes were measured prior to RT and at 6- and 18-months post-RT. Linear mixed effects models examined the relationship between RT dose and change in salivary flow, and change in patient-reported outcomes.

RESULTS

544 patients had baseline salivary flow measurement, with median (IQR) stimulated flow rate of 0.975 (0.648, 1.417) g/min. Average RT dose to parotid glands was associated with change in salivary flow post-RT (p < 0.001). Diminished flow to 37% of pre-RT level was observed at 6 months (median: 0.358, IQR: 0.188 to 0.640 g/min, n = 481) with partial recovery to 59% of pre-RT at 18 months (median: 0.575, IQR: 0.338 to 0.884 g/min, n = 422). Significant improvement in patient-reported swallowing, senses (taste and smell), mouth opening, dry mouth, and sticky saliva (p-values < 0.03) were observed between 6 and 18 months post-RT. Changes in swallowing, mouth opening, dry mouth, and sticky saliva were significantly associated with changes in salivary flow from baseline (p-values < 0.04).

CONCLUSION

Salivary flow and patient-reported outcomes decreased as a result of RT, but demonstrated partial recovery during follow-up. Continued efforts are needed to improve post-RT salivary function to support quality of life.

Orofacial Granulomatosis Treated With Combination of Intralesional Steroids and Hydroxychloroquine

This article presents a case of a 39-year-old woman with spontaneous lip swelling with gingival erythema. The case report discusses orofacial granulomatosis, a condition that often poses diagnostic and management challenges. Additionally, the article emphasizes the importance of establishing a definitive diagnosis of this disease, which has similar clinical and histological features to other oral and systemic conditions. Finally, a successful management approach is discussed that uses combination therapy consisting of intralesional steroid injections and oral hydroxychloroquine.

Exposed bone in patients with head and neck cancer treated with radiation therapy: An analysis of the Observational Study of Dental Outcomes in Head and Neck Cancer Patients (OraRad)

BACKGROUND

Patients with head and neck cancer (HNC) treated with radiation therapy (RT) are at risk for jaw osteoradionecrosis (ORN), which is largely characterized by the presence of exposed necrotic bone. This report describes the incidence and clinical course of and risk factors for exposed intraoral bone in the multicenter Observational Study of Dental Outcomes in Head and Neck Cancer Patients (OraRad) cohort.

METHODS

Participants were evaluated before RT and at 6, 12, 18, and 24 months after RT. Exposed bone was characterized by location, sequestrum formation, and other associated features. The radiation dose to the affected area was determined, and the history of treatment for exposed bone was recorded.

RESULTS

The study enrolled 572 participants; 35 (6.1%) were diagnosed with incident exposed bone at 6 (47% of reports), 12 (24%), 18 (20%), and 24 months (8%), with 60% being sequestrum and with 7 cases (20%) persisting for >6 months. The average maximum RT dose to the affected area of exposed bone was 5456 cGy (SD, 1768 cGy); the most frequent associated primary RT sites were the oropharynx (42.9%) and oral cavity (31.4%), and 76% of episodes occurred in the mandible. The diagnosis of ORN was confirmed in 18 participants for an incidence rate of 3.1% (18 of 572). Risk factors included pre-RT extractions (P = .008), a higher RT dose (P = .039), and tobacco use (P = .048).

CONCLUSIONS

The 2-year incidence of exposed bone in the OraRad cohort was 6.1%; the incidence of confirmed ORN was 3.1%. Exposed bone after RT for HNC is relatively uncommon and, in most cases, is a short-term complication, not a recurring or persistent one.

Efficacy and Safety of a Novel Mucoadhesive Clobetasol Patch for Treatment of Erosive Oral Lichen Planus

BACKGROUND

Oral lichen planus (OLP) is a chronic inflammatory disorder of the oral mucosa. Currently there is no approved treatment for oral lichen planus (OLP). We report on the efficacy and safety of a novel mucoadhesive clobetasol patch (Rivelin^® -CLO) for the treatment of OLP.

METHODS

Patients with confirmed OLP and measurable symptomatic ulcer(s) participated in a randomized, double-blind, placebo-controlled, multicenter clinical trial testing a novel mucoadhesive clobetasol patch (Rivelin^® -CLO) in OLP across Europe, Canada and USA. Patients were randomized to placebo (non-medicated), 1, 5, 20 µg Clobetasol/patch, twice daily, for 4 weeks. The primary endpoint was change in total ulcer area compared to baseline. Secondary endpoints included improvement from baseline in pain, disease activity, and quality of life.

RESULTS

Data were analyzed and expressed as mean [SD]. One hundred thirty-eight (138) patients were included in the study; 99 females and 39 males, mean age was 61.1 [11.6] years. Statistical analyses revealed that treatment with 20-μg Rivelin^® -CLO patches demonstrated significant improvement with ulcer area (P=0.047), symptom severity (P=0.001), disease activity (P=0.022), pain (P=0.012), and quality of life (P=0.003) as compared with placebo. Improvement in OLP symptoms from beginning to the end of the study was reported as very much better (best rating) in the 20-µg group (25/32) patients compared to the placebo group (11/30), (P=0.012). Adverse events were mild/moderate. Candidiasis incidence was low (2%).

CONCLUSIONS

Rivelin^® -CLO patches were superior to placebo demonstrating statistically significant, clinically relevant efficacy in objective and subjective improvement and, with a favorable safety profile.

Tooth failure post-radiotherapy in head and neck cancer

PURPOSE

To elucidate long-term sequelae of radiation therapy (RT) in head and neck cancer (HNC) patients, a multi-center prospective study, Clinical Registry of Dental Outcomes in Head and Neck Cancer Patients (OraRad), was established with tooth failure as its primary outcome. We report tooth failure and associated risk factors.

METHODS

Demographics, cancer and dental disease characteristics were documented in 572 HNC patients at baseline and 6, 12, 18, and 24 months after RT. Eligible patients were age 18 or older, diagnosed with HNC, and receiving RT to treat HNC. Tooth failure during follow-up was defined as losing a tooth or having a tooth deemed hopeless. Analyses of time to first tooth-failure event and number of teeth that failed used Kaplan-Meier estimators, Cox regression, and generalized linear models.

RESULTS

At 2 years, the estimated fraction of tooth failure was 17.8% (95% confidence interval [CI]: 14.3%-21.3%). Number of teeth that failed was higher for those with fewer teeth at baseline (p<0.0001), greater reduction in salivary flow rate (p=0.013), and non-compliance with daily oral hygiene (p=0.03). Patients with dental caries at baseline had higher risk of tooth failure with decreased salivary flow. Patients who were oral hygiene non-compliant at baseline but compliant at all follow-up visits had the fewest teeth that failed; greatest tooth failure occurred in participants who were non-compliant at baseline and follow-up.

CONCLUSION

Despite pre-RT dental management, substantial tooth failure occurs within 2 years after RT for HNC. Identified factors may help to predict or reduce risk of post-RT tooth failure.

Influence of topical corticosteroids on malignant transformation of oral lichen planus

BACKGROUND

Oral lichen planus (OLP) is considered an oral potentially malignant disorder. While OLP has been associated with the development of oral squamous cell carcinoma (OSCC), little is known about the role of topical corticosteroids therapy (TCT) in the promotion of carcinogenesis. The study aimed to determine if TCT influences the time of malignant transformation of OLP to OSCC. The study also investigates this correlation in the presence or absence of Candida overgrowth, and in the context of conventional OSCC risk factors such as smoking, alcohol use, and male gender.

METHODS

A retrospective analysis of electronic health records at a tertiary care academic medical center was performed. Patients with OLP and OSCC were considered for inclusion. The diagnosis of OLP required both clinical and histological documentation.

RESULTS

Eighty-two patients met inclusion criteria, consisting of 48 women (58.25%) and 34 men (41.5%) and the mean patient age was 65.9 years (SD = 13.25). Forty-five patients (54.9%) received TCT for OLP before they developed OSCC. The time between the OLP and OSCC diagnoses increased by four years in patients who received topical steroid therapy for OLP (p < 0.001) and decreased by three years (p = 0.010) in those with Candida overgrowth. Gender, smoking, and alcohol use did not have a statistically significant influence on the time between OLP and OSCC.

CONCLUSION

The management of OLP using TCT potentially delayed cancer development in our study. Conversely, it appears that Candida may play a role in the field cancerization of OLP patients.

EBV-positive B-cell ulcerative proliferation in the oral cavity associated with EBV-negative follicular lymphoma in a patient with common variable immunodeficiency: A case report and review of the literature

Lymphoproliferative disorders (LPDs) are a group of conditions characterized by excessive production of lymphocytes manifested in various patterns including lymphadenopathy, tumor-like lesions, and lymphomas. LPD may be stimulated by Epstein-Barr virus (EBV) infection that most commonly appears in the setting of immunocompromised status such as long-term use of immunosuppressive medications and in individuals with primary immunodeficiency disorders. EBV mucocutaneous ulcer is a benign LPD reaction that mostly regresses spontaneously but sometimes requires medical or surgical intervention. This article presents a case of oral EBV mucocutaneous ulceration that affected an individual with a history of complex primary immunodeficiency disorders consisted of common variable immunodeficiency disease associated with T-cell dysfunction. This case is unique because the oral lesions led to the diagnosis of concurrent widespread EBV-negative follicular lymphomas, seemingly unrelated to her EBV-positive LPD oral disease. Yet, both occurred in the setting of severe immunosuppression from the primary immunodeficiency disorders.

Systemic sclerosis: Update for oral health care providers

Systemic sclerosis (SSc), also known as scleroderma, is an autoimmune disease of unknown origin characterized by an uncontrolled inflammatory process resulting in fibrosis of the skin, internal organs and vasculopathy. Manifestations of SSc are heterogenous and can include pulmonary, cardiac, neural, renal, muscular, cutaneous and orofacial complications. Recent scientific advances have led to a better understanding of disease etiopathogenesis and the development of a new classification system. Therapeutic management is often multidisciplinary and targeted toward the affected organs. Oral health care providers (OHCPs) should be familiar with SSc, particularly as it relates to its impact on the orofacial region and modifications to delivery of oral health care for patients with this condition.

Epidemiologic factors in patients with advanced head and neck cancer treated with radiation therapy

BACKGROUND

Approximately 50% of patients with head and neck cancer (HNC) initially were seen with advanced disease. We aimed to evaluate the association of epidemiologic factors with advanced HNC at diagnosis.

METHODS

The OraRad multicenter prospective cohort study enrolled HNC patients receiving curative-intent radiation therapy. Factors assessed for association with advanced HNC presentation at diagnosis included demographics, social and medical history, cancer characteristics, human papilloma virus (HPV) status, and dental disease measures.

RESULTS

We enrolled 572 participants; 77% male and mean (SD) age of 61.7 (11.2) years. Oropharyngeal squamous cell carcinomas (88% HPV-related) were seen with smaller tumors, but more frequent nodal involvement. Private medical insurance and no Medicaid were associated with smaller tumors. A higher dental disease burden was associated with larger tumors.

CONCLUSIONS

Insurance status, cancer type/location, and dental disease are associated with advanced HNC and may represent potentially modifiable factors or factors to be considered in the screening process of new lesions.

Analysis of The Oral Cavity: Portal to Health and Disease, a massive open online course in oral medicine

OBJECTIVE

The aims of this study were to (1) analyze the demographic characteristics of learners participating in The Oral Cavity: Portal to Health and Disease (TOC), the first massive open online course in oral medicine, and (2) assess worldwide interest in accessible, high-quality oral medicine education.

STUDY DESIGN

TOC development and design was reviewed in detail to provide background for course organization and content. Learner demographic characteristics were gathered and analyzed to identify course participation and engagement.

RESULTS

TOC premiered on September 17, 2017 as a novel source for oral medicine-based information. By March 1, 2020, TOC had 18,122 learners, of whom 4,641 enrolled. This sample included all age groups and genders, people of varied educational and employment backgrounds, and participants from 6 continents. Learners rated the course 4.9 out of 5 stars and submitted many positive reviews.

CONCLUSIONS

TOC provided oral medicine-based education to individuals with interests in dental, medical, and allied health professions. Interest in oral medicine-related education was supported by high learner engagement in this course with wide global distribution.

Participation in an existing massive open online course in dentistry during the COVID-19 pandemic

The coronavirus disease 2019 (COVID‐19) pandemic presented unprecedented challenges and interruptions to education at all levels. As many across the world were required to stay at home, virtual educational resources were developed and relied upon to provide all levels and subjects of instruction. Introduction to Dental Medicine, a massive open online course in dentistry, experienced an increase in enrollment during the start of the pandemic and learners displayed a positive reception to the information provided. Introduction to Dental Medicine was particularly well positioned as a resource during the pandemic given its availability, established nature, and the wide accessibility of course material. As disruptions to normal activities continue, this and other virtual educational methods may continue to play a central role in education and exposure to dentistry.

Implications of Tattoos That Oral Healthcare Providers Should Consider

Occasionally, a patient may present with an intraoral tattoo, such as the patient in this instance who presented with one on the lower orolabial mucosa. Both extraoral and intraoral tattooing could be considered a potential indicator of risk-taking behaviors and possible increased risk of mental health or sleep disorders in this patient population. This article discusses risks of ornamental tattooing and the role oral healthcare providers can play in early identification of possible systemic diseases.

Introduction to dental medicine: Analysis of a massive open online course in dentistry

OBJECTIVES

This study aims to: (1) assess learner demographics of Introduction to Dental Medicine (IDM), an early Massive Open Online Course (MOOC) developed for the Coursera platform and (2) analyze course enrollment to determine worldwide interest in accessible, high-quality dental education.

METHODS

The authors review the development and organization of IDM and present learner statistics to critically evaluate learner traits and course engagement for IDM.

RESULTS

IDM has been available since June 15, 2015, and as of March 1, 2020, gained 90,374 visitors, of whom 16,739 have enrolled and demonstrate continued monthly and daily engagement. Learners represent all age groups and genders and include participants of all educational and employment backgrounds, reflecting broad interest in dental knowledge. They originate from 6 continents with the largest percentages of learners from countries including the United States, Egypt, India, and the United Kingdom. IDM learners have provided positive feedback, rating the course 4.8/5 stars and often providing individual accounts of the benefit of their experiences.

CONCLUSIONS

IDM presented an opportunity to learn general dental concepts. The course served to increase familiarity in the field for all learners, including health professionals, patients, and anyone with an interest in the subject. It also served as preparation for or to expand education in dental, medical, and allied health professions. High learner engagement with wide global distribution demonstrated interest in dental education worldwide.

Dental Considerations in Patients with Oral Mucosal Diseases

Oral mucosal diseases represent a significant health care burden, rendering a complex patient population in which interdisciplinary care among dermatologists, primary dental providers, and dental specialists is required for optimal care. Oral mucosal diseases often cause painful ulceration and blistering which can impede a patient's ability to perform dental home care and the dental professional's ability to deliver routine and complex treatment. It is crucial to consider the environment of the oral cavity. It is paramount to be aware of the potential side effects that certain medications may cause and the possible interactions with other medications the patient is using.