Periodontal Management of Cyclosporin A-Induced Gingival Overgrowth: A Nonsurgical Approach

Table 1

Periodontitis stage according to the 2018 new classification.

Periodontitis stage		Stage I	Stage II	Stage III	Stage IV
Severity	Interdental CAL at the site of the greatest loss	1 to 2 mm	3 to 4 mm	≥5 mm	≥5 mm
	Radiographic bone loss	Coronal third (<15%)	Coronal third (15 at 33%)	Extending to the middle or apical third of the root	Extending to the middle or apical third of the root
	Tooth loss	No tooth loss due to periodontitis		Tooth loss due to periodontitis of ≤4 teeth	Tooth loss due to periodontitis of ≥5 teeth
Complexity	Local	Maximum probing  mm; Mostly horizontal bone loss	Maximum probing  mm; Mostly horizontal bone loss	(i) In addition to stage II complexity; Probing  mm; (ii) Vertical bone  mm; (iii) Furcation involvement; Class II or III; (iv) Moderate ridge defect	In addition to stage III complexity: need for complex rehabilitation due to; (i) Masticatory dysfunction; (ii) Secondary occlusal trauma (tooth mobility ); (iii) Severe ridge defect; (iv) Bite collapse, drifting, and flaring; (v) Less than 20 remaining teeth (10 opposing pairs)
Extent and distribution	Add to stage as descriptor	For each stage, describe extent as localized (<30 % teeth involved), generalized, or molar/incisor pattern.