Conclusion: This method may not only repair and preserve the decayed tooth, but also maintain the completion of the primary dentition and improve the masticatory function.

• 结论：嵌体冠修复乳磨牙大面积牙体缺损效果良好，对保存严重缺损乳磨牙，维持乳牙列完整，提高咀嚼功能有实际意义。