Mathematical Methods for Assessing the Prognostic of Fixed Partial Dentures Resulting from Evaluating a Group of Dental Patients in Romania

Table 6

Coefficient found for mechanical resistance of FPR.

Name of the parameter	𝑎 (6); Static occlusion	𝑎 (7); Dynamic occlusion	𝑎 (8); Average degree of neighbouring teeth tilting	𝑎 (9); Esthetics of the studied area	𝑎 (10); Caries risk
Possible values	Functional; 𝑎6=0; pg = pg + 2	Functional; 𝑎7=0; pg = pg + 1	0°< 𝑎 (8) ≤ 10°; 𝑎8=0	Small gingival recessions ≤2 mm; 𝑎9=0	High; 𝑎10=100; pg = pg − 3; rii = rii + 2; rcp = rcp + 2; rip = rip + 2
	Minor bumps of the occlusal plane; 𝑎6=39; pg = pg + 1	1–3 interferences; 𝑎7=40; pg = pg − 1	10°< 𝑎 (8) ≤35°; 𝑎8=66	2 < medium gingival recessions ≤6 mm; 𝑎9=33	Average; 𝑎10=66; pg = pg − 2; rii = rii + 1; rcp = rcp + 1; rip = rip + 1
	Medium bumps of the occlusal plane; 𝑎6=69; pg = pg − 1;	1–3 premature contacts; 𝑎7=40; pg = pg − 2	>35°; 𝑎8=100	Important gingival recessions >6 mm; 𝑎9=100	Low; 𝑎10=33; pg = pg − 1
	Big bumps of the occlusal plane (±very deep or reversed Spee curve); 𝑎6=100; pg = pg − 2;	More than 3 interferences; 𝑎7=100; pg = pg − 3			0; 𝑎10=0
		Peste 3 contacte premature; 𝑎7=100; pg = pg − 4