Kyste apical（KA） - Guide de tourisme médical et soins en Chine

A periapical cyst arises from chronic inflammation at the root tip of a non-vital tooth. Treatment focuses on eliminating infection, preserving tooth structure where possible, and preventing recurrence. Clinical decisions depend on cyst size (measured via periapical radiograph or CBCT), symptoms, tooth viability, and patient age. Small asymptomatic cysts may be monitored; larger or symptomatic lesions typically require intervention. Conservative approaches are considered first for small, stable lesions in patients with contraindications to surgery.

Non-surgical options

• •Root canal treatment (RCT) with calcium hydroxide or MTA apexification: used when the tooth is salvageable and cyst is ≤5 mm. Includes access cavity, biomechanical preparation, intracanal medication, and obturation. Estimated cost: $180–$320 per tooth.
• •Antibiotic therapy (e.g., amoxicillin/clavulanate): adjunct only, never standalone. Prescribed for acute flare-ups pre-RCT. Cost: $15–$30 for 7-day course.
• •Follow-up radiographs (digital periapical X-ray): required at 3, 6, and 12 months post-RCT. $25–$45 each.

• •Apicoectomy with retrofilling (using MTA or glass ionomer): performed under local anesthesia at Grade 3A hospitals like Peking University School & Hospital of Stomatology (Department of Endodontics) or Shanghai Ninth People’s Hospital (Oral and Maxillofacial Surgery). Includes osteotomy, cyst enucleation, root-end resection, and sealing. Pre-op CBCT ($80–$120) and blood tests ($40–$65) required. Total estimated cost: $850–$1,450.
• •En bloc resection (for large cysts >15 mm or multi-rooted teeth): less common; involves removing cyst + adjacent bone segment. Requires longer recovery. Cost range: $1,300–$2,100.

• •Marsupialization followed by delayed enucleation: used for very large cysts compressing vital structures. Two-stage procedure; includes drainage tube placement and secondary surgery. Adds $300–$550 to total.
• •Histopathological analysis (mandatory post-excision): $60–$95.

Young patients (<25) with small cysts and intact teeth often start with RCT. Budget-conscious patients prioritize RCT + monitoring over surgery. Those with recurrent swelling, large cysts (>10 mm), or failed RCT usually proceed directly to apicoectomy. Patients with systemic comorbidities (e.g., uncontrolled diabetes) may need medical clearance before surgery — delaying treatment by 1–2 weeks. Exact cost depends on the hospital quote; typical treatment timeline is 2–4 weeks, varies by case.