Disease Description (Causes and Symptoms)
- Definition: Anodontia is a rare congenital disorder in which the development of all teeth is completely absent. Partial absence is distinguished from complete anodontia.
- Causes/Pathophysiology: It may occur in association with genetic factors or ectodermal dysplasia. During tooth development, the tooth-forming tissue is absent, so tooth germs (developing tooth structures) do not form. Depending on the extent of tooth absence, growth of the alveolar ridge may be impaired, resulting in changes to facial form.
- Main symptoms: Difficulty chewing, speech problems, esthetic and facial deformities (reduced lower facial height and reduced lip support), difficulty making and maintaining dentures in children, and, after age 8, reduced facial height and fissures at the corners of the mouth (areas of the oral mucosa), increasing the risk of infections such as candidal stomatitis.
Treatment Methods
- Treatment goals: Restoration of function (chewing and speech), improvement of esthetics, establishment of a long-term rehabilitation plan according to growth, and psychosocial support.
- Conservative/Functional Treatment
- Children: During growth, removable dentures (partial or complete dentures) or overdentures are used to support chewing function and esthetics. Dentures require periodic adjustment or replacement in accordance with growth and changes in the alveolar ridge.
- Adults (after skeletal maturation): Fixed prosthetic treatment using implant prostheses (placement of prostheses after implant placement) is a long-term solution. Bone grafting or bone augmentation is required when bone deficiency is severe.
- Multidisciplinary approach: Collaboration among pediatric dentistry, prosthodontics, periodontics, orthodontics, and oral and maxillofacial surgery (implants and bone grafting), with genetics and dermatology as needed (evaluation for ectodermal dysplasia), as well as mental health services (psychosocial support).
- Medication/Infection management: If oral candidiasis develops, antifungal medication (topical or systemic) is administered along with oral hygiene management.
- Lifestyle management and precautions: Denture care (daily cleaning and overnight storage), maintenance of oral hygiene, regular dental visits (to determine the timing of adjustments and remaking), and nutritional management (dietary adjustments in case of difficulty chewing).
- Contraindications/Precautions: If fixed implants are placed prematurely before completion of skeletal growth, growth interference may cause failure and poor fit — the timing of implant placement should be determined according to each patient’s skeletal maturity.
Checklist Before an Outpatient Visit (Items, Records, and Example Questions)
- Items/records to bring:
- A record of currently used medications and allergies
- Previous oral and dental treatment records and radiographs (previously performed panoramic or dental radiographs)
- Growth and development records (for children, height and weight trends and pubertal development status)
- Family history (whether any family members have tooth absence or ectodermal dysplasia)
- Photographs of symptoms (facial and intraoral photographs) and specific examples of difficulties with chewing and speech
- Additional information useful for the physician’s assessment:
- When symptoms began, their pattern of change (worsening or improvement), and whether there have been recurrent infections of the gums or oral mucosa
- Eating habits (chewing patterns and whether there is smoking or alcohol use) and oral hygiene habits
- Examinations that are useful to show the medical team at the outpatient visit:
- The latest panoramic radiograph and dental CT (cone-beam CT) are important for assessing bone volume and developmental status
- Genetic testing, if necessary (when ectodermal dysplasia is suspected)
Examples of General Questions to Ask the Doctor
- "What are the possible treatment options for this condition? What are their advantages and disadvantages?"
- "When can implants be considered? What criteria are used regarding age or growth status?"
- "Which would be more advantageous for us: dentures (removable) or implant prostheses?"
- "What are the risks of complications from treatment, and what is the alternative plan if treatment fails?"
- "How long will treatment take, and what is the estimated cost (approximate range)?"
- "Are there any lifestyle habits or oral care methods that require special attention before or after treatment?"
Examples of Condition-Specific Questions
- For parents of children: "My child is still growing. Around when can implants be safely placed? Until then, how should we manage the dentures?"
- When ectodermal dysplasia is suspected: "What additional tests (genetic testing or skin/developmental evaluation) are needed to determine whether ectodermal dysplasia is possible? How will the treatment plan change depending on the results?"