Quantification of the Dental Morphology of Orangutans

Table 3

Posterior teeth measurements.

(a)  

		Bornean orangutan						Sumatran orangutan
		TL	CL	ECCH	RL			TL	CL	ECCH	RL
					MB	DB	P				MB	DB	P
Max. PM1	R	28.3	11.3	7.5	16.9	14.2	18.7	26	8.7	6.1	17.1	14.7	17.2
	L	29.1	11.4	9	18.1	14.3	19.2	25.9	7.2	5.9	18.8	18.4	21.5
Max. PM2	R	23.3	9.3	5.4	13.5	11.4	15	ms	ms	ms	ms	ms	ms
	L	24.8	10.1	6.3	15	13.4	16	23.2	7.3	4.7	16	14.7	17.7
Max. M1	R	22	7.5	4.8	13.9	14.5	16.2	24.2	7.9	5.3	16	14.6	18.3
	L	22.4	7.3	5.2	14.7	14.7	17	ms	ms	ms	ms	ms	ms
Max. M2	R	18.9	7.3	3.5	11.4	12.1	15	ms	ms	ms	ms	ms	ms
	L	19	7.9	3.1	11.1	11.2	14.8	ms	ms	ms	ms	ms	ms
Max. M3	R	17.6	6.4	4.4	11.1	11.6	11.9	ms	ms	ms	ms	ms	ms
	L	16.8	6.5	3.1	10.7	11	11.1	ms	ms	ms	ms	ms	ms

(b)  

		Bornean orangutan					Sumatran orangutan
		TL	CL	ECCH	RL		TL	CL	ECCH	RL
					M	D				M	D
Mand. PM1	R	31.1	10.4	7.7	20.8	18.1	30.2	8.2	5.3	22.2	20.5
	L	29.9	8.8	5.4	21	18.2	32.2	7.5	7.2	23.8	19.6
Mand. PM2	R	26.8	8.1	5.3	19	19	ms	ms	ms	ms	ms
	L	26.1	7.6	4.8	18.5	18.5	27.8	8.4	4.5	17.7	16.9
Mand. M1	R	24.1	5.4	4	18.3	16.8	25.5	6.5	4.6	18.2	17.4
	L	24.2	6.2	4	18.9	17.6	ms	ms	ms	ms	ms
Mand. M2	R	22.3	6.8	3.9	15.8	15	ms	ms	ms	ms	ms
	L	21.8	7	3.3	14.8	14.3	ms	ms	ms	ms	ms
Mand. M3	R	17.9	7.7	5.1	11.3	11.3	ms	ms	ms	ms	ms
	L	20	7.6	4.2	12.1	13	ms	ms	ms	ms	ms

R: right; L: left; TL: tooth length; CL: Crown length; ECCH: enamel covered area; LPS: length of the pulp space; RL: root length; MB: mesiobuccal root; DB: distobuccal root; P: palatal root; M: mesial root; DB: distal root; ms: missing tooth.