INBDE (Integrated National Board Dental Examination) Practice Exam 2025 - Free Practice Questions and Study Guide

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Which is considered the most unique and primitive primary tooth?

Primary mandibular first molar

The primary mandibular first molar is considered the most unique and primitive primary tooth among the options listed. This tooth typically has a more distinct and unique anatomical shape compared to the other primary molars. It is often referred to as the "key" to the dentition due to its important role in maintaining the arch length and integrity of the dental arch. The specific cusps and grooves of the primary mandibular first molar make it stand out as the most primitive tooth in the primary dentition.

In comparison, the other options (B, C, and D) are also primary molars but do not exhibit the same level of uniqueness and primitive characteristics as the primary mandibular first molar.

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Primary maxillary first molar

Primary mandibular second molar

Primary maxillary second molar

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