What does this research mean for the field?

The HLA B21 and DR6 alleles are negatively associated with stage III/IV grade C periodontitis in the Moroccan population. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

The study aims to determine the association between HLA class I and II phenotypes and stage III/IV grade C periodontitis in Moroccans.

June 7, 2026Journal of Advanced Periodontology & Implant DentistryOpen Access

Association between HLA molecules and stage III/IV grade C periodontitis in a Moroccan population: A case-control study

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Authors

KAKhadija AmineUniversity of Hassan II Casablanca WKWafa El KholtiUniversity of Hassan II Casablanca SBSiham BennaniInstitut Pasteur du Maroc

Discussion

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Implication

Case-control study assesses HLA molecule associations with periodontitis severity in a Moroccan population, implying genetic risk factors.

Key Points

The study aims to determine the association between HLA class I and II phenotypes and stage III/IV grade C periodontitis in Moroccans.
Case-control design involving 26 patients with periodontitis and 202 healthy controls.
Phenotyping for HLA class I using BIOTEST microlymphocytic plate technique.
Genotyping for HLA DR alleles and bivariate analysis performed with chi-squared test.
The B21 allele frequency was significantly lower in periodontitis cases (10.34%) compared to controls (31.18%), χ2=5.40, P=0.02.
The DR6 allele frequency was significantly lower in periodontitis cases (11.52%) than in controls (33.16%), χ2=5.07, P=0.024.
A negative association between the B21 and DR6 alleles with stage III/IV grade C periodontitis was found.

Cite This Study

Amine et al. (2026) studied this question.

synapsesocial.com/papers/6a250c7d7def13d035e1ca10 https://doi.org/10.34172/japid.026.3839

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Implication

Case-control study assesses HLA molecule associations with periodontitis severity in a Moroccan population, implying genetic risk factors.

Association between HLA molecules and stage III/IV grade C periodontitis in a Moroccan population: A case-control study

Discussion

Member takes

Implication

Key Points

Cite This Study

Association between HLA molecules and stage III/IV grade C periodontitis in a Moroccan population: A case-control study

Discussion

Member takes

Implication

Key Points

Cite This Study

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