Stomatology ›› 2026, Vol. 46 ›› Issue (5): 375-379.doi: 10.13591/j.cnki.kqyx.2026.05.009

• Case Analysis • Previous Articles     Next Articles

Digital double-guide assisted minimally invasive restoration for mandibular anterior wide diastema using composite resin

SUN Lizhong1,2, HAN Mingyue1,3,4, BI Huimin1,5, LI Jiyao1,3, LIANG Kunneng1,3()   

  1. State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral DiseasesChengdu 610041, China
  • Received:2025-07-28 Online:2026-05-28 Published:2026-05-15

Abstract:

This study presents a complex clinical case of minimally invasive esthetic restoration for mandibular anterior diastema using digital double-guide technology-assisted composite resin direct bonding. The patient exhibited abnormally proportioned dental crowns leading to wide diastema. Digital technology was employed to reconstruct optimal tooth morphology,complemented by 3D-printed lingual morphological guides and labial contour guides. The double-guide system enabled precise control of composite resin layering and morphological construction,achieving minimally invasive esthetic rehabilitation. This case establishes a standardized protocol for diastema restoration,demonstrating particular clinical significance for morphological and functional reconstruction in wide interdental spacing cases.

Key words: digitalization, double-guide technique, diastema, minimally invasive esthetics, resin restoration

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