ブログ

バイヤーガイド

Fluorescence in E.max Veneers: What Can the Lab Customize?

E.max veneers can match perfectly in ordinary light yet behave differently when ultraviolet wavelengths enter the room. We examine what a dental lab can actually control—from lithium disilicate selection and ceramic thickness to fluorescent layering, characterization, glaze, and the often-overlooked effect of resin cement.

バイヤーガイド

Seating Pressure and Cement Film Thickness in Ultra-Thin Veneers

Ultra-thin veneers leave very little room for cementation error. Seating pressure, resin viscosity, preparation geometry, internal fit, working time, and excess cement escape all influence the final cement layer. Here is what published research actually tells us—and why simply “pressing harder” is not a reliable cementation protocol.

製品・素材

Laboratory QC Standards for Ultra-Thin Zirconia Veneers

Ultra-thin zirconia veneers leave very little room for laboratory error. This guide examines practical QC checkpoints for 0.3–0.5 mm restorations, including thickness verification, CAD/CAM accuracy, marginal fit, translucency, sintering control, and final release criteria.

歯科知識

Nesting Zirconia Veneers in Multilayer Blanks

Multilayer zirconia does not behave like a uniformly colored puck. Veneer position inside the blank can change which optical and, depending on the zirconia system, structural layers become part of the restoration. This guide examines practical zirconia veneer nesting, CAD/CAM positioning, thickness, translucency, and the limits of universal “incisal-up” rules.

製品・素材

Matching Zirconia Veneers to Adjacent E.max Restorations

Matching zirconia veneers beside existing E.max restorations is not a simple A1-to-A1 shade exercise. Zirconia (ZrO₂) and lithium disilicate (Li₂Si₂O₅) transmit, scatter, and mask light differently. Here is how clinicians and laboratories can control value, translucency, ceramic thickness, cement shade, texture, and photography before the mismatch reaches the patient.

歯科知識

Repairing a Chipped Zirconia Veneer: When Is Composite Temporary?

A chipped zirconia veneer does not automatically need replacement, and composite resin is not automatically a temporary patch. The real decision depends on fracture size, exposed substrate, occlusion, surface treatment, bond durability, esthetic demands, and whether the original failure mechanism has been corrected.

顧客事例とワークフロー

Post-Cementation Occlusal Checks for Multi-Veneer Cases

Multi-veneer cases are not finished when the resin cement cures. A disciplined post-cementation occlusal check must verify maximum intercuspation, protrusive and lateral movements, ceramic contact location, guidance, surface finish, and parafunctional risk before six, eight, or ten bonded restorations are considered functionally complete.

歯科知識

ジルコニアベニアのエアアブレーションパラメータ

Air abrasion can improve zirconia veneer bonding, but more pressure is not automatically better. Here is the evidence behind Al₂O₃ particle size, blasting pressure, distance, duration, zirconia generation, and MDP-based bonding.

製品・素材

研磨仕上げと釉薬仕上げのベニア：どちらの仕上げの方がより自然な光の反射を生み出すか？

研磨仕上げと釉薬仕上げのベニア――どちらの仕上げがより自然な光の反射を生み出すか

研磨ベニアも釉薬ベニアも、滑らかで高光沢のセラミック表面を実現できますが、必ずしも同じように光を反射するとは限りません。ポーセレンベニアが天然のエナメル質に似ているかどうかは、単に「研磨」や「釉薬」という表現だけでなく、素材、微細な質感、線の角度、仕上げの順序、そして光沢によって決まるのです。.

製品・素材

均一なマルチユニットスマイルを実現するための、モノリシック型とレイヤード型のE.maxベニアの比較

モノリシック型およびレイヤード型のE.maxベニアは、いずれも前歯部に優れた仕上がりをもたらしますが、それぞれが解決する課題は異なります。6ユニット、8ユニット、あるいは10ユニットのスマイルの場合、真の判断基準となるのは、どの程度の光学的バリエーションが必要か、そしてそれを実現するためにどの程度の製造上のばらつきを許容できるかという点です。.