The typical order of eruption for the permanent mandibular teeth follows a specific chronological sequence which is important for assessing normal dental development and diagnosing potential abnormalities.

The correct sequence is: 6 - 1 - 2 - 3 - 4 - 5 - 7 - 8.

- The first tooth to erupt in the permanent mandibular dentition is usually the first molar (6), appearing around 6 years of age.
- This is followed by the central incisor (1) and then the lateral incisor (2).
- Next erupts the canine (3), followed by the first premolar (4) and the second premolar (5).
- The second molar (7) typically erupts after the premolars.
- Lastly, the third molar or wisdom tooth (8) erupts, usually between 17 to 21 years of age.

Important Points:
- The first molar (6) is the first permanent tooth to erupt, even before the loss of the primary teeth.
- The mandibular incisors erupt in sequence, central (1) then lateral (2).
- The premolars replace the primary molars.
- The eruption of the third molar (8) is highly variable and often the last.

Reference: Ten Cate’s Oral Histology, 9th Edition, Chapter 6: Tooth Eruption and Shedding, Page 140