Table 5. Intergroup comparison of primary and secondary outcome variables at six months.

Parameter/group	CTG group (mean ± SD)	PRF group (mean ± SD)	Z-value	p -Value ( p ≤ 0.05)
*( p ≤ 0.05) statistically significant.
Papillary height (mm)	3.50 ± 0.85	3.10 ± 1.10	0.885	0.376
Black triangle height (mm)	1.40 ± 0.70	2.50 ± 1.08	2.368	0.018*
Visual analog score–dentist	7.54 ± 1.28	4.98 ± 2.31	2.580	0.010*
Visual analog score–patient	7.30 ± 1.57	5.70 ± 2.31	1.371	0.171