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The narrowest bands of attached gingiva are commonly found in the buccal areas of the mandibular canines and first premolars. This region is particularly notable because the anatomical positioning and the underlying bone structure create less attached gingival tissue compared to other areas of the mouth.

In contrast, the bands of attached gingiva in the maxillary centrals and laterals tend to be wider due to the positioning and distribution of the gingival tissue related to the underlying bone structures. Similarly, the palatal areas around maxillary molars typically exhibit a wider band of attached gingiva because of the anatomical configuration of the palate. Meanwhile, the lingual areas surrounding mandibular incisors and canines generally have a wider band of attached gingiva as well due to the anatomical differences and the presence of more keratinized tissue in those regions.

This distribution emphasizes the unique considerations in periodontal health and treatment planning, especially in regions known for having narrow bands of attached gingiva, which can be more susceptible to recession and other periodontal challenges.