Macrodontia refers to teeth that are abnormally large. There are three types: true generalized where all teeth are enlarged, related generalized where teeth are slightly larger in a smaller jaw, and localized where one or more teeth are large. Causes include facial hemihypertrophy, gigantism, and genetic factors. Clinically, macrodontia presents as teeth that are larger than normal which can lead to crowding, malocclusion, and tooth impaction. Radiographs clearly show the increased tooth size. Diagnosis is made by visual examination. Treatment may involve orthodontics or extraction of impacted teeth.

1. Macrodontia

2. General information
• These are the teeth which are larger than
normal

3. Types
• True generalised – all the teeth are larger than
normal. It is commonly associated with
pituitary gigantism
• Related generalised – teeth are normal or
slightly larger than normal, but present in a
smaller jaw
• Localised – one or more large teeth exist in
relation to an otherwise normal dentition and
body size

4. Causes
• Facial hemihypertrophy – it is occasionally
seen in facial hemihypertrophy, in which half
of the teeth in unilateral distribution are
affected
• gigantism-in this generalised overgrowth of
the body occurs
• Genetic – genetic component also responsible
for macrodontia

5. Clinical features
• Teeth size – teeth are larger than normal
• Malocclusion – there is crowding, which may
result in malocclusion
• Impaction – as space is less, there is impaction
of teeth

6. Radiographic features
• The increased size will be demonstrated on
the radiograph

7. Diagnosis
• By looking at the size of tooth clinical
diagnosis can be made easily

8. Management
• If necessary orthodontic treatment is done
• If impacted extraction is indicated