how long does it take for permanent teeth to come in

Permanent teeth usually start coming in around age 5–7 and continue until about 12–13, with wisdom teeth often appearing between 17 and the mid‑20s. Once a baby tooth falls out, the adult tooth beneath it typically takes a few weeks up to about 6 months to fully appear, and up to roughly a year to finish growing into place.

Quick Scoop

• Most kids: First permanent teeth (often the “6‑year molars” and lower front teeth) show up between ages 5–7.

• Front teeth and canines: Commonly erupt between about 6–10 years.

• Premolars and second molars: Tend to come in between about 9–13 years.

• Wisdom teeth: Often appear between 17–25, and sometimes never erupt at all.

Once a specific baby tooth is lost:

• A visible permanent tooth often appears within about 2–8 weeks for single‑rooted teeth like incisors and canines.

• Molars, which have more roots, may take about 1–2 months or more to fully emerge through the gums.

• Many pediatric dentists note it can take up to 6 months for the replacement tooth to show and up to 12 months to be fully in position, especially if the baby tooth was lost early or the gum is thick.

Mini timeline: from baby tooth to full adult tooth

• 0–2 months after baby tooth falls out: A white edge or point of the new tooth usually becomes visible in the gap.

• 2–6 months: The tooth continues erupting, becoming more level with neighboring teeth; chewing and brushing may feel a bit awkward.

• 6–12 months: The tooth typically reaches its final height and starts to feel “normal” in the bite, even though the root is still completing development inside the bone.

Why it can take longer (and still be normal)

A few things can stretch this timeline without meaning anything is seriously wrong:

• Genetics and growth speed: Some children just develop a bit earlier or later than average.

• Jaw space and crowding: Limited space can slow eruption or make the tooth appear behind or in front of the baby tooth (“shark teeth” look) before it fully moves into line.

• Early or late loss of baby teeth: If a baby tooth falls out much earlier than usual (injury, decay, extraction), the adult tooth may wait longer before erupting, or drift slightly.

Most pediatric sources note that as long as it has not been more than about 6–12 months with no sign of the new tooth, and there is no pain or swelling, a modest delay can still be within normal limits.

When to get it checked

It is worth booking a dental visit if:

• No permanent tooth has appeared in a gap for around 6–12 months, especially if neighboring teeth of the same type are already in.

• A permanent tooth seems stuck half‑way, the gums look very puffy, or the child has ongoing pain or recurring infection in that area.

• Teeth are coming in very crowded, twisted, or far behind/in front of the baby teeth, which might benefit from early orthodontic guidance.

Regular checkups and, if needed, X‑rays let a dentist confirm that the adult teeth are present, on track, and not blocked by extra teeth or bone.

Information gathered from public forums or data available on the internet and portrayed here.