Antigen-presenting cells in human immunosuppressive drug-induced gingival enlargement

Distribution of Dendritic Cells and Langerhans Cells in Peri-implant Mucosa

Background

Peri-implant diseases leading to the failure of dental implants is concern in the field of dentistry. Difference in immune response around peri-implant tissues with healthy tissue might be responsible for the hidden cause of peri-implant diseases. Hence, in the current study, the dispersion of the dendritic cell (DC) subpopulations and Langerhans cells (LCs) was evaluated in healthy peri-implant mucosa (HPIM) and healthy mucosa (HM) to know the imbalance in immune homeostasis.

Subjects and Methods

A total of 15 nonsmoker participants were selected for the study. First sample of the HM was obtained before the implant placement (Group I) and second sample of peri-implant mucosa was obtained at the time of placement of the gingival former (Group II). Immunochemistry was used to quantify DCs and LCs in the samples.

Statistical Analysis Used

To analyze the distribution of cells in the epithelium and lamina propria, Wilcoxon matched pairs test was used.

Results

Mean numbers of CD1a (LCs) in the epithelium and lamina propria of Group I and Group II were 25.2 ± 6.41 and 27.47 ± 10.26 and 19.27 ± 7.27 and 12.46 ± 3.04, respectively. Mean numbers of factor XIIIa (DCs) in the epithelium and lamina propria in Group I and Group II were 30.37 ± 5.42 and 86.93 ± 13.99 and 50.47 ± 7.27 and 124.33 ± 10.27, respectively. Statistically significant differences in the number of cells in the epithelium and lamina propria of Group I and Group II were noted (P = 0.001 and P = 0.001).

Conclusions

CD1a-positive LCs were more in the epithelium rather than lamina propria in Group II. Higher numbers of factor XIIIa-positive DCs were observed in the lamina propria than epithelium in Group I and II.

Cytology and molecular mechanisms of drug-induced gingival hypertrophy: a rewiew

Introduction

Gingival hypertrophy is a frequent condition associated to the increased number of patients taking some categories of drugs. The goal of this work is to emphasize the importance of diagnosis to set a proper therapy.

Material and methods

The plaque accumulation in patients having a poor oral hygiene damages the periodontium and requires the application of strict professional and home hygiene protocols.

Results and conclusion

The drug-induced gingival proliferation knowledge is essential in order to succeed in working with the internist and in planning a precise therapy, without interfering with the metabolism of drugs, often necessary and irreplaceable for patients' health.