Tag Archives: Repost Clinic Case

Khai Nguyen Dental Lab would like to thank Dr Mai Tran and the team at Duc Nhan Dental for their trust and for sharing an interesting clinical case.

A single crown between two natural teeth

This case was a single IPS e.max crown on an upper anterior tooth, sitting between natural teeth on both sides. It sounds simple, and it is the hardest group of cases there is in esthetic terms.

The reason is that there is nowhere to hide an error. On a full arch, the lab sets its own reference for shade and form and applies it across the whole arch. On a single unit, the reference is already sitting next to it: the natural neighbours. The restoration has to match them on base shade, incisal translucency, cervical saturation, form, and even how the surface catches light. Miss any one of those and it shows immediately.

What the lab had to do

The case demanded maximum precision to secure marginal fit and to produce a result that reads continuously with the adjacent teeth. The technician works from the clinician’s shade photographs, builds form from the contralateral tooth, and finishes the surface so that the new crown is neither brighter nor duller than the two natural teeth beside it.

What we take from this case

A single anterior crown is the best test of a laboratory there is. If you want to assess the esthetic capability of a new partner, sending a case like this tells you far more than sending a full arch.

The condition is that the shade photographs have to be good. Images taken with the shade tab in frame, under consistent lighting, from both a straight and an angled view, help the lab enormously.

See IPS e.max CAD, or contact our team to send a trial case.

More cases with partner clinics: Full-arch ZirCAD Prime – Far East Dental · Full-arch e.max veneers and bite raising – Dr Sai Aom Kham · Anterior veneers – Nhan Tam Dental · All-on-X on titanium thimbles – Paris Dental.

Written for dentists and technicians. Khai Nguyen Dental Lab manufactures to clinical prescription only and does not sell directly to patients.

Khai Nguyen Dental Lab would like to thank Dr Bui Le My Hanh and Nhan Tam Dental for the collaboration, and in particular for the preparation and clinical work that gave the restoration a sound foundation.

The starting point

The patient presented with uneven wear across the upper anterior teeth, discolouration, and inconsistent form from tooth to tooth. The incisal edges had lost their natural curve, and the teeth differed in both length and brightness.

The solution and the lab’s part in it

The treatment plan called for veneers on the anterior segment. In worn-dentition cases like this, the hard part for the lab is not shade but form: rebuilding length and the incisal curve so it sits correctly against the smile line, while respecting the restorative space the clinician has prepared.

The result after cementation shows an even gingival contour, a continuous incisal curve, and a surface that reflects light naturally. That is where a veneer case succeeds or fails. It is not about how white the result is, but whether it reads as natural dentition.

A second case with Nhan Tam Dental

Earlier, the two teams also worked together on a combined case involving veneers, ceramic crowns and implant-supported restorations. Cases that mix restoration types call for consistent shade and form across groups with very different thicknesses, and that is only achievable when clinic and lab discuss the plan in detail before production starts.

What we take from this case

In anterior wear cases, the clinician’s preparation largely determines how much room the lab has to work with. When the restorative space is sufficient and even, the technician can concentrate on form and surface effect rather than fighting a lack of thickness.

See feldspathic non-prep veneers, or contact our team to discuss your own case.

More cases with partner clinics: Full-arch ZirCAD Prime – Far East Dental · Full-arch e.max veneers and bite raising – Dr Sai Aom Kham · All-on-X on titanium thimbles – Paris Dental · Single e.max crown – Dr Mai Tran.

Written for dentists and technicians. Khai Nguyen Dental Lab manufactures to clinical prescription only and does not sell directly to patients.

Khai Nguyen Dental Lab would like to thank Dr Sai Aom Kham for the trust placed in our team on the two cases below.

Case one: full-arch e.max veneers with bite raising

This case carried two overlapping goals: improve the esthetics of the smile and raise the vertical dimension at the same time. The prescription called for a final shade of 1M2 over ND2 preparations.

That pairing is the hard part. ND2 is a discoloured preparation, darker than natural dentine, while 1M2 is a bright and translucent target. The thinner the veneer, the more the preparation shade drives the final result. In cases like this the lab has to balance three things: the thickness actually available, the opacity of the internal layer needed to block the underlying shade, and enough translucency at the incisal edge that the restoration does not end up looking dead. Raising the bite at the same time means form and inter-arch relationship have to be planned from the start, not adjusted at the finish.

Case two: full-mouth rehabilitation combining several solutions

The second case was completed with The Grand Dental and combined veneers, ceramic crowns and implant-supported restorations in a single treatment plan.

When several restoration types appear in one case, occlusion and overall esthetics have to be calculated up front, because each group has different thickness, translucency and shade behaviour. Our technicians work closely to the prescription so colour and function stay consistent across the whole restoration rather than each group drifting on its own.

What we take from these cases

Both belong to the harder group because they combine an esthetic demand with a change in occlusion. Our experience is to settle three things before production starts: the actual preparation shade, the target shade, and how much the bite is being raised. Those three numbers drive almost every material and thickness decision that follows.

See IPS e.max Press or our comparison of dental ceramic materials when planning a similar case.

More cases with partner clinics: Full-arch ZirCAD Prime – Far East Dental · Anterior veneers – Nhan Tam Dental · All-on-X on titanium thimbles – Paris Dental · Single e.max crown – Dr Mai Tran.

Written for dentists and technicians. Khai Nguyen Dental Lab manufactures to clinical prescription only and does not sell directly to patients.