When there are too many•γ→♠ tooth defects or the adjacent surface has b& >een destroyed, the shape ≈™<of the tooth and the normal adjacency relatiφ♦onship cannot be resto&≈red by filling treatment'± (abnormal adjacency can cause food impactionΩ ✔∑), inlay repair can be selected. Iλ€λ☆nlay is a kind of prosthesis e★©•mbedded in the cavity of the tooth to restore ¶∞® the shape and function of the tooth ↕♥'defect.

The production step is: first, the affec¥Ω₩ted tooth is cut and ground into a certain₩Ω shape of the cavity, and the<€ ÷n according to the shape of the ↑←™★cavity, with different materi×☆als to make a completely consistent with the c∞‌φ•avity of the restoration - inlay. Aft>®δer fitting, the inlay was adhered♣β to the cavity with cement to restore th€∑✔™e defect of the tooth tiss姱>ue and the shape and function oφ¥‍✘f the affected tooth to normal. Compared with t&↔©he filling method, t¥→he intercalation can better β♥restore the occlusal surface shape and adjace✘± ♦nt surface contact.

The inlay system can be divided into ↔Ωλ¶metal inlay, hard resin inlay an ±d porcelain inlay accordi÷∞§×ng to different materials. Metal inlays h→$ave good performance, robustness ≈☆γand durability, and a∏£re widely used. However, metal inl↓¥∞ays are often used in the resφ§toration of posterior teeth because of their c←♦™ olor. Hard resin inlai ₽αd and porcelain inlaid colo₽∏r and human teeth color coordination, ha>‌rd wear resistant, front teeth more applicγ♦ations.