BIOMET 3i™ ANALOGS

External hex

Fig. 1

Fixture level analogs (Fig.1) for Biomet 3i™ external hex implants are not color coded for platform diameter identification. The external hex of the analog, regardless of the analog diameter (4.1mm catalog # ILA20, 5mm catalog # ILAW5, 6mm catalog # ILAW6) is machined to the same dimension with the exception of the micro mini (3.4mm platform, catalog # MMILA) analog. This feature would leave the option to mount a 4.1mm analog to a 6.0mm impression coping (transfer) and still be able to use a correct 6.0mm abutment on the model for example.

Certain® internal hex

Fig. 2

Fixture level analogs (Fig.2) for Biomet 3i™ internal hex implants are color coded purple (3.4mm catalog # IMMILA), blue (4.1mm catalog # IILA20), yellow (5.0mm catalog # IILAW5) and green (6.0mm catalog # IILAW6). The internal hex indexing feature, regardless of the analog diameter is machined to the same dimension with the exception of the 3.4mm platform analog. This feature would leave the option to mount a 4.1mm analog to a 6.0mm impression coping (transfer) and still be able to use a correct 6.0mm abutment on the model for example. 4.1, 5.0 and 6.0mm analogs are machined with a hex at the internal coronal portion (primary indexing feature) and a double hex (secondary indexing feature) further inside the analog allowing twelve positions for stock angled abutments. 3.4mm platform analogs are machined with a double hex (duodegon) and will allow 12 different seating positions of straight and angled abutments.

Provide® solid abutment analogs

Fig. 3

Biomet 3i™ developed the Provide® abutment system for Certain® implants only. The abutments are intended to be installed by the surgeon or the dentist and impressed with color coded (yellow, gray, green, brown) plastic snap on impression copings. Color coding of the impression copings is keyed to the abutment diameter and height. Use only corresponding color analogs (Fig.3).

Fig. 4

Even though the plastic copings are color coded, the yellow coping will fit over a provide abutment intended to be impressed with a gray impression coping and vice versa. The same interchangeability issue presents itself with the green and brown impression copings. Sometimes the abutment is prepared intraorally and impressed with a white impression coping evidenced by a white plastic ring embedded in the impression material and impression material inside the white ring. Special analogs (Fig.4) are utilized in this situation. A shoulder analog will snap in to the white ring in the impression and a pin will slide in to the shoulder analog. The pin is shortened at the tip until it seats flush inside the analog. Remove the pin and pour the impression with stone and slide the pin back in to the analog.