Indications: The adjacent teeth have undercuts and are unwilling to molar teeth to receive fixed restorations;
Contraindications: patients with missing free ends and edentulous patients;
Adjacent teeth without undercut retention
Patients with too tight bite and no space to set teeth
Advantages: natural, beautiful, no need to grind adjacent teeth; easy to take and wear
Disadvantages: After a long time of use, the elasticity will be fatigued and cannot be bottomed.
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