Research Article

Quantification of the Dental Morphology of Orangutans

Table 4

Posterior teeth root canal measurements.
(a)

Bornean orangutanSumatran orangutan
Root canal lengthRoot canal widthRoot canal lengthRoot canal width
MBDBPMBDBPMBDBPMBDBP
comapcomapcomapcomapcomapcomap

Max. PM1R1714191.10.50.40.60.40.3110.5cal.cal.cal.cal.cal.cal.cal.cal.cal.cal.cal.cal.
L1814190.90.50.30.80.70.630.70.9cal.cal.cal.cal.cal.cal.cal.cal.cal.cal.cal. cal.
Max. PM2R14131510.50.30.50.40.31.610.8msmsmsmsmsmsmsmsmsmsmsms
L1614181.20.50.60.40.40.42.30.70.9cal.cal.cal.cal.cal.cal.cal.cal.cal.cal.cal.cal.
Max. M1R1415161.10.40.60.70.40.520.70.7cal.cal.cal.cal.cal.cal.cal.cal.cal.cal.cal.cal.
L1515170.90.50.20.50.30.120.70.7msmsmsmsmsmsmsmsmsmsmsms
Max. M2R12121410.50.40.50.40.42.10.80.8msmsmsmsmsmsmsmsmsmsmsms
L11121410.50.40.40.50.32.40.91.2msmsmsmsmsmsmsmsmsmsmsms
Max. M3R1211121.10.60.60.30.30.21.60.60.6msmsmsmsmsmsmsmsmsmsmsms
L1211110.60.70.30.20.50.31.81.20.6msmsmsmsmsmsmsmsmsmsmsms

(b)



Bornean orangutanSumatran orangutan
Root canal lengthRoot canal widthRoot canal lengthRoot canal width
MDMDMDMD
comapcomapcomapcomap

Mand. PM1R21191.30.70.60.70.60.4cal.19cal.cal.cal.1.50.50.6
L21190.70.40.60.80.60.425211.81.10.620.70.7
Mand. PM2R19191.10.60.51.10.80.3msmsmsmsmsmsmsms
L19180.90.30.30.80.30.218ca1.50.30.2cal.cal.cal.
Mand. M1R19181.90.40.51.80.70.619191.50.60.51.30.40.5
L20181.80.50.41.50.50.5msmsmsmsmsmsmsms
Mand. M2R16152.10.70.62.510.6msmsmsmsmsmsmsms
L15141.50.40.31.60.70.6msmsmsmsmsmsmsms
Mand. M3R13121.71.20.711.20.9msmsmsmsmsmsmsms
L12141.80.80.50.90.70.7msmsmsmsmsmsmsms

R: right; L: left; MB: mesiobuccal root; DB: distobuccal root; P: palatal root; M: mesial root; D: distal root; co: canal orifice; m: midpoint between orifice and apex; ap: apex; ms: missing tooth; cal.: partially calcified root canal; cal.: fully calcified root canal.