Necessity of oral health intervention in schizophrenic patients - A review

The influence of socioeconomic and behavioural factors on the caries experience of adults with mental disorders in a large Brazilian metropolis

Background

Individuals with mental disorders have a significant risk of experiencing a deterioration in their oral health due to several factors. This cross-sectional descriptive study aimed to evaluate the influence of socioeconomic and behavioral factors on the caries experience of adults with mental disorders in a large Brazilian metropolis.

Methods

A total of 753 adults diagnosed with schizophrenia or depression participated in the study. They were users of 10 public mental health outpatient clinics located in the city of São Paulo, Brazil. These adults provided data on socioeconomic characteristics, medication use, and behaviours related to general and oral health. Oral heath examinations were conducted to evaluate dental plaque and caries experience.

Results

It was observed that the chance of presenting decayed, missing due to caries, and filled teeth (DMFT) above the sample median was significantly higher among older individuals (OR = 11.62; 95% CI: 8.11-16.66), those with lower education levels (OR = 1.76; 95% CI: 1.23-2.53), those who used tobacco 3 or more times per week (OR = 1.74; 95% CI: 1.18-2.56) and those with a higher biofilm index (OR = 1.45; 95% CI: 1.01-2.09), p< 0.05. The DMFT index (mean ± SD) was 15.3 ± 8.4 for individuals with schizophrenia and 15.8 ± 8.3 for individuals with depression. Mean plaque index was 2.81 for participants with schizophrenia and 2 for participants with depression.

Conclusion

The sample of Brazilian adults with mental disorders had poor oral health, which was associated with socioeconomic, behavioural, and oral factors.

Association between initial clozapine titration and pneumonia risk among patients with schizophrenia in a Korean tertiary hospital

Pneumonia is a significant adverse drug reaction (ADR) associated with clozapine, characterized by high mortality and potential linkage with other inflammatory responses. Despite the critical nature, research regarding the development of pneumonia during initial clozapine titration remains limited. This retrospective study included 1408 Korean inpatients with schizophrenia spectrum disorders. Data were collected from January 2000 to January 2023. Pneumonia developed in 3.5 % of patients within 8 weeks of clozapine initiation. Patients who developed pneumonia were taking a greater number and higher dose of antipsychotics at baseline (2.14 vs. 1.58, p < 0.001; 25.64 vs. 19.34, p = 0.012). The average onset occurred 17.24 days after initiation, on an average dose of 151.28 mg/day. Titration was either paused or slowed in most of these patients, with no reported fatalities. The types of pneumonia included aspiration pneumonia, mycoplasma pneumonia, bronchopneumonia, and COVID-19 pneumonia. Myocarditis, drug reaction with eosinophilia and systemic symptoms (DRESS) syndrome, and urinary tract infections were also identified. Logistic regression analysis revealed that a greater number of concomitant antipsychotics (odds ratio [OR] = 1.59, p = 0.027) and concomitant benzodiazepine use (OR = 2.33, p = 0.005) at baseline were associated with an increased risk of pneumonia. Overall, pneumonia development during clozapine titration is linked with other inflammatory ADRs, suggesting a shared immunological mechanism. Close monitoring is recommended, especially for patients taking multiple antipsychotics and benzodiazepines. Further studies involving repeated measures of clozapine concentrations at trough and steady state, along with a more detailed description of pneumonia types, are warranted.

Genetic evidence strengthens the bidirectional connection between oral health status and psychiatric disorders: A two-sample Mendelian randomization study

BACKGROUND

Observational studies cannot accurately infer the causal associations between oral health status and psychiatric disorders.

METHODS

We conducted univariate and multivariate Mendelian randomization (MR) analyses using single nucleotide polymorphisms (SNPs) associated with eight oral health statuses (periodontitis, DMFS, Nteeth, toothache, loose teeth, painful gums, bleeding gums, and mouth ulcers) and four psychiatric disorders (Schizophrenia, Major Depressive Disorder (MDD), anxiety and stress-related disorder (ASRD), and Bipolar Disorder (BIP)) as instrumental variables. Genetic data were sourced from the Gene-lifestyle interactions in dental endpoints (GLIDE), UK Biobank, Psychiatric Genomics Consortium (PGC), and Lundbeck Foundation Initiative for Integrative Psychiatric Research (iPSYCH). The inverse variance-weighted (IVW) approach, supported by a comprehensive sensitivity analysis, was employed.

RESULTS

Genetically predicted mouth ulcers were significantly linked to higher MDD (OR = 2.17, 95 % CI: 1.33--3.54, P< 0.01) and BIP risks (OR = 2.25, 95 % CI: 1.22-4.15, P = 0.01). BIP heightened bleeding gums risk (OR = 1.01, 95 % CI: 1.00-1.01, P < 0.01). These associations were adjusted for smoking status and alcohol consumption. Painful gums were significantly associated with MDD risk (OR = 96.48, 95 % CI: 2.66-3495.28, P = 0.01), while MDD raised periodontitis risk (OR = 2.15, 95 % CI: 1.24-3.75, P = 0.01), both confounded by smoking and alcohol. Relatively small effects between several variables, while others could not withstand correction for multiple tests.

LIMITATIONS

The sample size and limitation to European populations limits the study generalizability.

CONCLUSIONS

This study provide evidence of possible causal relationships between several oral health conditions and mental illness. Focusing on oral health and valuing mental health are important for each other and overall health.

Oral health primary preventive interventions for individuals with serious mental illness in low- and middle-income nations: Scoping review

Mental health disorders constitute a major global disease burden, especially in low and middle-income countries (LMICs). Due to issues related to access, hygiene, economic pressures, and communication, the oral health of individuals with serious mental illness (SMI) receives little attention. This scoping review comprehensively maps and synthesises the existing literature on oral health primary preventive interventions (OHPPIs) in LMICs, highlighting key strategies and challenges encountered in addressing oral health disparities in resource-constrained settings. We systematically searched Cochrane Library, Ovid (MEDLINE), PsycINFO and Embase. The search strategy included keywords and MeSH terms related to oral health, SMI interventions, and LMICs. We included all types of OHPPI, (preventive, promotive, behavioural, and educational approaches) implemented in LMICs. We identified three studies focused on OHPPI for SMI patients that met our inclusion criteria. The interventions included were: (I) educational interventions; (II) behavioural interventions combining motivational and educational elements, and (III) self-assessment interventions combining educational and physical elements. Multifaceted barriers and challenges to effective oral health interventions were identified covering limited access to dental services, and socio-economic disparities. This scoping review underscores the need to develop and test context-specific strategies, capacity building, and policy support to improve oral health outcomes in LMICs.

The Relationship between Oral Health and Schizophrenia in Advanced Age-A Narrative Review in the Context of the Current Literature

Schizophrenia is a psychiatric disorder that makes patients incompetent to perform day-to-day activities due to their progressing mental illness. In addition to disturbances with thoughts, behavioral changes, and impaired cognitive functions, oro-systemic health also becomes compromised. Even though the population with schizophrenia is primarily made up of older people, little is known about this group's oral health treatment. The present review explores the relationship between oral healthcare and elderly patients with schizophrenia. Our literature search included databases, like PubMed, Embase, and Google Scholar, for appropriate and evidence-based information. Preventive and management strategies outlined in the included articles and future research perspectives in this field are discussed. To the best of our knowledge, this is the first review that looked at dental care and related characteristics in older schizophrenia patients. The findings highlight the necessity for targeted dental interventions to address the dental health challenges faced by this vulnerable population. Integrating dental health into the overall medical management of elderly individuals with schizophrenia is crucial. Although specific therapies remain limited, the emphasis is on preventive dentistry to reduce the occurrence and progression of oral diseases in this group.

Oral hygiene status and factors related to oral health in hospitalized patients with schizophrenia

OBJECTIVE

This study aimed to elucidate the oral hygiene status and the factors associated with poor oral hygiene among patients with schizophrenia.

METHODS

The relationships of oral hygiene status (calculus index [CI], debris index [DI]), the mean number of decayed-missing-filled teeth (mean DMFT), and Revised Oral Assessment Guide (ROAG) with related factors (hospitalization, chlorpromazine equivalents [CPZE], age, Barthel Index [BI], frequency of cleaning teeth, and self-oral hygiene ability) among 249 hospitalized schizophrenic patients were investigated.

RESULTS

The results for oral hygiene status were as follows: median (range); CI 0.5 (0-6.0), DI 1.7 (0-6.0), ROAG 10.0 (7.0-15.0); and mean DMFT 21.7±7.3. The average CPZE was 524.4±353.6 mg (mean ± SD), and the BI was 76.4±30.7. There was a negative correlation between BI and DI (r = -0.34) and a positive correlation between age and mean DMFT (r=0.57). Male patients tended to have worse oral conditions (ROAG) than females. The least-squares multiple regression analysis revealed that BI for DI, age for mean DMFT, sex for ROAG, and self-oral hygiene ability for CI, DI, and mean DMFT were factors related to oral health status.

CONCLUSION

Patients with schizophrenia tended to have poor oral hygiene. BI, being male, and low activities of daily living were associated with poor oral hygiene. Furthermore, advanced age was associated with an increased risk of dental caries.

Association between schizophrenia and periodontal disease in relation to cortisol levels: an ELISA-based descriptive analysis

Background

Schizophrenia is a chronic psychosis marked by multiple bioenvironmental and immunological dysregulation with its intricate role in etiopathogenesis of periodontal disease remaining unclear. Hence, the aim of this study is to determine the association between periodontal disease and schizophrenia in relation with cortisol levels.

Methods

The study is in descriptive design comprised of 40 subjects randomly selected (20 schizophrenic patients as Group A and 20 healthy volunteers as group B). All the study participants underwent complete periodontal examination including scoring of gingival index (GI), plaque index (PI), Probing depths (PD) and clinical attachment loss (CAL). Salivary cortisol levels are estimated using ELISA. Link between schizophrenia and periodontal disease is described in relation to cortisol levels with elimination of other shared risk factors, such as tobacco smoking and xerostomia.

Results

Significant higher values of periodontal parameters are observed in Group A with schizophrenic patients (GI 2.467 ± 0.528; PI 2.402 ± 0.526; PD 2.854 ± 0.865; CAL 1.726 ± 3.096) than Group B with healthy subjects (GI 0.355 ± 0.561; PI 0.475 ± 0.678; PD 1.493 ± 0.744; CAL 0.108 ± 0.254). However, cortisol levels are lower in schizophrenic group (0.190 ± 0.059) than non-schizophrenic group (0.590 ± 0.228) ruling out the possible role of cortisol in periodontal disease severity associated with schizophrenic patients.

Conclusion

Findings of this study, provides ground evidence for consideration of schizophrenia as a risk factor for periodontitis and demands greater emphasis on management of schizophrenic patients in dental setting similar to other comorbid disorders such as diabetes mellitus and also incorporating periodontal care measures in the clinical guidelines for schizophrenia management.