
The no prep approach, when and how
Indications for no prep protocols are quite strict and may be summarized as follows:
– Post orthodontic treatment needing some small improvement
– Little smile design corrections (embrasures, diastemas, etc…)
The no prep concept is nowadays heavily trending, but for proper planning the practitioner should have a precise idea of dos and donts.
This article is made to highlight the use of chips in esthetic treatment.
TIPS of the case:
– basic way of production in the lab restoration: press and polish
– bleach before starting the case to increase esthetic integration of chips
– bonding sequences starting by chips first and laminate after.

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Conclusions
No prep restorations can be very precious in contemporary treatment planning to solve some everyday cases, though it is important to integrate this type restoration in a basic workflow where it is simple for both the lab and the dentist in order to do it in a feasible and repeatable way.
The role of the dentist as a smile architect is fundamental to visualize the ideal pink/black/white ratio for top quality esthetics and biological preservation.
Bibliography
1. Molina IC, Molina GC, Stanley K, Lago C, Xavier CF, Volpato CA. Partial-prep bonded restorations in the anterior dentition: Long-term gingival health and predictability. A case report. Quintessence Int. 2015 Sep 28.
2. Miro AJ, Shalman A, Morales R, Giannuzzi NJ. Esthetic Smile Design: Limited Orthodontic Therapy to Position Teeth for Minimally Invasive Veneer Preparation. Dent Clin North Am. 2015 Jul;59(3):675-87
3. Magne P, Hanna J, Magne M. The case for moderate “guided prep” indirect porcelain veneers in the anterior dentition. The pendulum of porcelain veneer preparations: from almost no-prep to over-prep to no-prep. Eur J Esthet Dent. 2013 Autumn;8(3):376-88.
4. Gresnigt M, Ozcan M. Esthetic rehabilitation of anterior teeth with porcelain laminates and sectional veneers. J Can Dent Assoc. 2011;77:b143.