Clinical application

The tiniest rotary movements of pliers cause alveolar wall fractures in the roots of anterior teeth as they are usually oval in cross-section.

Several fracture lines running longitudinally clearly visible in the video.

Only in rare cases (such as bridge abutment extraction, immediate implant placement) does mucosa-flapping occur in Benex extractions, thus enabling the alveolar wall to be seen from a vestibular direction:

situation of bridge abutment extraction

situation of immediate implant placement

situation of immediate implant placement

situation of immediate implant placement

After a Benex extraction the buccal wall is usually only visible from an intra-alveolar direction. Here mirror view.

Here direct view into the extraction socket

The buccal alveolar wall is well preserved

Conventional extraction frequently damages the ridge in the posterior region of the upper jaw in such a way as to considerably complicate the implantation. The minially invasive extraction with Benex allows a one-stage approach for  sinus lift/implantation even with an elongated maxillary sinus.

Case example 1: owing to extraction with Benex sinus lift/implantation was easily possible in a one-stage approach.

Case example 2: large ridge defect due to conventional, invasive extraction.  The implantation was complicated despite high subantral bone height.

Full separation of the buccal from the palatal root.
Check with mirror and luxator.
Slowly press the buccal and palatal root together with a pair of pliers.

The two loosened roots are extracted separately.

Typical case

Premolar extraction orthodontically indicated

Step-by-step

1. Opening

Osteotomy  up to the largest crown circumference

2. Drill through the crown

3.Extraction: Little force is exerted

Milk teeth with an orthodontic extraction indication often have long fine roots which are prone to break.

Case 1:  Extraction indication due to break through obstruction

Cave: before the Benex extraction: slice mesial/distal, easy tooth mobilization with lever/pliers.

Case 2: Extraction of milk tooth and occlusive tooth bud

Extraction of a maxillary molar

Step-by-step Pictures of various cases

After removing the crown, the buccal roots need to be separated from the palatal root.

It is imperative that the separation be complete.
It can be checked with a mirror and a luxator.

Press the palatal and buccal roots together using a pair of pliers, they detach from the palatal or buccal alveolar walls.

Important: apply low pressure with the pliers and maintain it for at least 20 seconds.

Hole for the Benex screw

Extract the loosened, palatal root with the pole extractor.

Separate the buccal roots.

Then using the luxator press the distobuccal root in a mesiopalatal direction …

… and the mesiobuccal root in a distopalatal direction.

No pressure toward buccal!

Status after extraction

Status six months after extraction:
complete preservation of the ridge width

Deep-lying root fragments threaten to be pushed into the sinus during removal.
They are usually well loosed. Non-loosened root fragments must be loosened before using the stickremover. You can osteotomize circulatory around the fragment and then release the fragment with the lever.

The Benex hole is made without pressure (the drill diamond grinds). The Benex screw can be introduced without pressure, which ensures a safe extraction of the root fragment.

Case 1: upper wisdom tooth

Case 2: upper wisdom tooth

Case 3: Root fracture during the luxation of a mandibular wisdom tooth even the crown was separated before the luxation.

1. Tooth bud, submucosally, displaced

Mucoperiostal flap opening, osteotomy up to the largest crown circumference.
The screw can be inserted into the crown with the diamond-coated Benex drill.

2. The crown of the mesiodens is broken through.

The mesiodens can be extracted by a flapless procedure.

3. Mesiodens, submucosally, lying transversally

Mucoperiostal flap opening, osteotomy up to the largest crown circumference

Case 1

First the crown is separated and removed

The root is mobilized with the luxator. Benex drilling with the surgery hand piece.
Insert the screw with the pole extractor. Knock out the root.

Case 2  (like Case 1)

Case 3  

No crown separation if crown status is favorable (unsuccessful loop therapy).

Benex is not usually required in wisdom tooth extractions.

Only with horizontally displaced wisdom teeth with a large part of the root lying directly on the Canalis mandibularis is the Benex pole extractor indicated, as there is the risk of channel injury with conventional extraction with lever/osteotomy.

Case 1

Case 2

Case 3

Case 4

Case 5

The extraction of badly anchored roots which can be hardly gripped with pliers is the only Benex indication with less effort / less time compared to conventional extraction.