During which stage does the tooth bud form from the dental lamina?

• A. Initiation
• B. Bud
• C. Cap
• D. Bell

Answer: (B)

Understanding how the tooth germ develops through its stages helps you know when the bud appears. The dental lamina first thickens to form the placode during initiation, marking the start of tooth development. The actual tooth bud then appears as the dental lamina grows outward into the underlying mesenchyme, creating a rounded outgrowth that is the earliest recognizable tooth germ. This outgrowth is the bud stage, the stage where the tooth bud forms from the dental lamina. Afterward, the bud progresses to the cap stage, where the enamel organ forms a cap over the dental papilla, followed by the bell stage with further differentiation.