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Research Article
- Prevalence of periapical abscesses in psoriasis patients: a retrospective cross-sectional study
- Ilan Rotstein, Joseph Katz, Simone Grandini, Giulia Malvicini, Franklin Garcia-Godoy
- J Korean Acad Conserv Dent ;Published online August 10, 2026
- DOI: https://doi.org/10.5395/rde.2026.51.e39 [Epub ahead of print]
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Abstract
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ePub - Objective: This study was performed to assess the prevalence of acute periapical abscesses (PAs) in patients with psoriasis and to determine whether this relationship remains after adjusting for related systemic, behavioral, and treatment-related confounders.
Methods
A retrospective hospital-based analysis of 2,108,676 patients was conducted using de-identified clinical data. Diagnoses of psoriasis and acute PA without sinus involvement were identified using standardized coding. The association between psoriasis and acute PAs was assessed using odds ratios (ORs) with 95% confidence intervals (CIs). Multivariable logistic regression analyses were performed to adjust for diabetes, nicotine dependence, alcohol related disorders, and biologic therapy use.
Results
Among 16,084 patients with psoriasis, 224 were diagnosed with acute PAs. Psoriasis was associated with a significantly higher prevalence of acute PAs than in the overall hospital population (OR, 2.21; 95% CI, 1.94–2.53; p < 0.0001). This association remained statistically significant after adjustment for diabetes (OR, 1.40), nicotine dependence (OR, 1.31), alcohol related disorders (OR, 1.89), and biologic therapy use (OR, 1.77). Female patients and white patients with psoriasis exhibited a higher prevalence of acute PAs compared with other demographic groups.
Conclusions
Psoriasis is independently associated with an increased risk of acute PAs, even after accounting for common medical and behavioral risk factors. Greater awareness among clinicians and closer collaboration between dermatology and oral healthcare providers can facilitate earlier diagnosis and preventive treatment.
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Original Article
- Isolation and identification of bacteria from the root canal of the teeth diagnosed as the acute pulpitis and acute periapical abscess
- Yeon-Jae Lee, Mi-Kwang Kim, Ho-Keel Hwang, Joong-Ki Kook
- J Korean Acad Conserv Dent 2005;30(5):409-422. Published online September 30, 2005
- DOI: https://doi.org/10.5395/JKACD.2005.30.5.409
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Abstract
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The aim of this study was to identify the bacteria isolated from acute endodontic lesions by cell culture and 16S rDNA sequencing. The necrotic pulpal tissue was collected from 17 infected root canals, which were diagnosed as being either an acute pulpitis or acute periapical abscess. Samples were collected aseptically from the infected pulpal tissue of the infected root canals using a barbed broach and a paper point. The cut barbed broaches and paper points were transferred to an eppendorf tube containing 500 ul of 1 X PBS. The sample solution was briefly mixed and plated onto a BHI-agar plate containing 5% sheep blood. The agar plates were incubated in a 37℃ anaerobic chamber for 7 days. The bacteria growing on the agar plate were identified by 16S rRNA coding gene (rDNA) cloning and sequencing at the species level. Among the 71 colonies grown on the agar plates, 56 strains survived and were identified. In dental caries involving the root canals,
Streptococcus spp. were mainly isolated.Actinomyces ,Clostridia ,Bacteroides andFusobacteria were isolated in the periapical lesion without dental caries. Interestingly, two newActinomyces spp. (ChDC B639 and ChDC B631) were isolated in this study. These results showed that there was diversity among the species in endodontic lesions. This suggests that an endodontic infection is a mixed infection with a polymicrobial etiology. These results may offer the bacterial strains for pathogenesis studies related to an endodontic infection.-
Citations
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- Microorganism penetration in dentinal tubules of instrumented and retreated root canal walls.In vitroSEM study
Saad Al-Nazhan, Alaa Al-Sulaiman, Fellwa Al-Rasheed, Fatimah Alnajjar, Bander Al-Abdulwahab, Abdulhakeem Al-Badah
Restorative Dentistry & Endodontics.2014; 39(4): 258. CrossRef - Microbial profile of asymptomatic and symptomatic teeth with primary endodontic infections by pyrosequencing
Sang-Min Lim, Tae-Kwon Lee, Eun-Jeong Kim, Jun-Hong Park, Yoon Lee, Kwang-Shik Bae, Kee-Yeon Kum
Journal of Korean Academy of Conservative Dentistry.2011; 36(6): 498. CrossRef
- Microorganism penetration in dentinal tubules of instrumented and retreated root canal walls.In vitroSEM study
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