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. Author manuscript; available in PMC: 2021 Apr 1.
Published in final edited form as: J Periodontal Res. 2019 Dec 1;55(2):307–314. doi: 10.1111/jre.12716

Table 4.

Length, embedding and insertion angles of the Sharpey’s fibers of the oblique group in different molars.

Molars Length (μm) Embedding angle (°) Insertion angle (°)

Bone side Cementum side Bone side Cementum side Bone side Cementum side

Mandible 1 132.8 (68.4, 193.9) 44.0 (25.1, 91.6) #* 57.6 (51.5, 63.8) 48.1 (41.6, 59.8) * 51.1 (43.7, 59.6) 50.6 (44.9, 54.8)
2 112.3 (67.5, 179.7) * 35.4 (19.0, 53.8) #* 57.5 (52.0, 45.5) 59.3 (51.8, 72.3) 53.2 (46.8, 63.9) 49.6 (41.9, 55.4)
3 104.9 (55.2, 171.7) * 44.5 (30.5, 59.3) #* 53.0 (73.9, 63.6) 55.9 (42.4, 65.7) 51.2 (44.9, 57.7) 51.3 (42.7, 60.1)
Maxilla 1 124.4 (93.7, 169.2) 34.1 (23.7, 60.8) #* 58.1 (49.3, 64.2) 71.9 (63.9, 79.5) #* 55.7 (46.4, 63.9) * 48.7 (40.7, 56.0)

Results are expressed as median (interquartile range).

Length: * significantly different than bone side of first molar, # significantly different than bone side of second molar.

Embedding angle: * significantly different than cementum side of second molar.

Insertion angle: * significantly different than bone side of first molar.

Mandibular molars are compared to each other, p<0.005 according to Bonferroni Correction.

Maxillary first molars are compared to mandibular first molars only. p<0.012 according to Bonferroni Correction.