contrasted view of multiple diastemata

Single shade for diastema closure

The restoration of anterior teeth is one of the biggest challenges for a dentist, because of the difficulties in color matching, and in recreating natural internal structure of the tooth. Small median diastemata and small spaces are the most difficult ones to restore, so special, dedicated tools, such as the Unica matrix (Polydentia powered by Styleitaliano) are needed to make the process easy.

smile with wide central diastema between incisors


Initial smile of our 26 years old patient.

multiple diastemata between upper front teeth


Initial situation shows multiple diastemata involving all upper incisors.

upper central and lateral incisors with wide gaps


The contrasted view helps in proportion study.

rubber dam isolation of spaced incisors


Isolation with rubber dam is very important in order to provide a clean, clear and dry environment.

etching with orthophosphoric acid of incisor enamel


Etching of the enamel surface with 37% phosphoric acid.

bonding application with microbrush on etched enamel


Application of a generous amount of bonding.

simultaneous unica matrices for emergence profile and diastema closure


Two Unica matrices were used to give an anatomical contour and emergence profile, which is the main challenge when closing diastemata.

composite restorations on central incisors under rubber dam isolation


The restoration was completed by applying a single, universal, composite shade.

unica matrix stabilized with liquid dam


The Unica matrix was also used to get a good emergence profile while close the space between the central and lateral. Liquid dam is useful to secure the matrix and to prevent its deformation.

lateral incisors restored with composite resin to close diastemata


The restoration is completed by applying a single composite shadeon both laterals.

pencil marks for finishing of incisor restorations


Drawing the secondary and tertiary anatomy with pencil to prepare the teeth for finishing and polishing.

rubber tip for composite polishing


The restorations were finished and polished thoroughly.

abrasive strips for proximal polishing of composite


The proximal was smoothened using finishing strips.

felt wheel for composite gloss


A felt wheel was the used for final gloss.

glossy composite restorations


Final situation before removal of the rubber dam.

almost closed diastema without tooth preparation


Final situation at 1-month recall. Contrasted picture.

smile after direct diastema restorations


Final situation at 1-month recall. Occlusion.

smile after correction of diastemata


Final smile of the patient.


When dealing with aesthetic restorations, an optimal reconstruction of the tooth profile is paramount. In case of diastema closure, various tools and procedures can help the clinician to correctly restore the emergence profile; among these, the new Unica anterior matrix stands out because of its simplicity and versatility, allowing to quickly and easily restore both cervical and interproximal profiles at the same time, strongly reducing the chair-side time, and bringing aesthetic restorations within everyone’s reach.


1. Chiodera G. Replacement of a class V composite restoration.
2. Manauta J. Direct Stratification Composite Veneers with UNICA Anterior.
3. Lazar D. Class IV restorations with UNICA Anterior.