Class IV reattachment and restoration with one shade

27 Apr 2017 - 43700

It often happens that our younger patients experience trauma from falling, thus causing the fracture of their front teeth or – even worse – their avulsion. If a fracture is not complicated by pulp exposure, and if the parents have succeeded in recovering the fractured fragments, they may be immediately bonded, sometimes enriched with a partial restoration of the missing parts. In the following clinical case a technique proposed that involves the use of a single body mass of composite material, exploiting modern medium-translucent and highly mimetic new composite materials.

Fig. 1

A falling trauma occurred to this young female patient, 8 years old.

Fig. 2

Details of the fracture of 21.

Fig. 3

Details of the fracture of 21. 

Fig. 4

Details from a palatal view. TIP: we often suggest you take a picture of the incisal edges with a mirror. This is helpful to have palatal details. Luckily, no pulp exposure occurred, so I proceeded to the restorative session, without performing any pulp capping

Fig. 5

TIP: isolation with the rubber dam is mandatory. Sometimes it’s difficult to get proper isolation with children, so you can use a liquid dam to increase it, as done on tooth 22.

Fig. 6

TIP: with a flame shaped, fine-grain bur, or with a round one (Direct Style kit by Style Italiano) remove the unsupported enamel and create a small bevel. With the modern body mass materials (medium translucency) there’s no need to create a deep chamfer.

Fig. 7

Details of the two fragments of 21. The fragments are not the whole missing part so there’ll be the need to replace 30-35% of the lost tissue with composite material.

Fig. 8

After the bonding procedures, that we’ve been performing for 3 years now with a Universal Adhesive system (8th generation), with a self-etching protocol, we reattach the fragments with an A2 body mass, using the same material to fill the missing part among the fragments and on the vestibular and lingual surface, with two different layers to counteract the shrinkage of the composite material. You can use a matrix to protect the neighboring tooth.

Fig. 9

In a few minutes, the two pieces are bonded and the missing part is ended too, with the body mass. TIP: finish and polish it using the Style Italiano Finishing bur kit and the Diamond Twist high charged polishing diamond paste. You can use a disc to re-contour the mesial and distal edges if they looked too straight (as they seemed to be in this case) and a large-grain diamond bur to better mark the line between the incisal lobes.

Fig. 10

One week control: the happy young patient shows a beautiful smile and her joy is ours as well. There’s no need to re-polish or to perform corrections, as the two fragments disappear among the restoration that shows a very nice integration

Fig. 11

One month control.

Fig. 12

One month control, details of the two central incisors.

Fig. 13

Details of the Class IV restoration done with composite and the two reattached fragments.

Fig. 14

Details from a lateral view; you can appreciate the primary, secondary and tertiary anatomies that have been reproduced with the finishing procedures.

Fig. 15

The occlusal view shows a good shaping, also of the palatal wall.

Fig. 16

Details of the two incisors from an incisal view that shows a good morphological and chromatic integration of the restored 21 and a perfect symmetry with his neighboring, contralateral tooth.



The simplification of the operative procedures is one of the aims of the Philosophy of Style Italiano, so we suggest the use of a single mass also for anterior restorations and reattachment of fragments, in case of trauma and broken teeth. This is not something that can decrease the single individual skills or reduce the final quality of your work, but, on the contrary, it makes operating procedures more feasible, manageable and fluid also for the experienced operators, as you can see from the result just shown above.


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