Due to bone resorption secondary to tooth extraction, clinicians commonly perform maxillary sinus lift procedure to restore missing upper first molar with an implant, especially if the site is left untreated for a long time. But an alternative and more conservative treatment approach using a “short and fat” implant from Anthogyr is able to reduce surgical downtime and risk of complications.
By Dr Sebrina Abdul Malik
A 43-year-old healthy male patient had his upper left first molar (tooth 26) extracted three years ago due to failed root canal treatment. He is a regular patient in the dental office, a non-smoker and has good oral hygiene.
A panoramic radiograph was taken revealing moderate bone resorption at the edentulous site of tooth 26 with a low scalloped-shape maxillary sinus floor (Fig. 1).
The patient had a prior consultation with another dentist and was recommended to undergo a maxillary sinus lift procedure to restore his missing tooth 26 with a dental implant.
However, he was concerned about the complications of the aforementioned procedure.
As an alternative, I offered him a more conservative treatment approach by using a short dental implant, which is 8mm or less in length.
Conservative open flap surgery with the insertion of an optimally positioned Anthogyr’s “short and fat” dental implant PX 4.6×6.5mm was performed. Healing abutment (5mm diameter, 2.5mm gingival height) was used to maintain the gingival emergence profile and to aid in healing the future prosthetic crown (Figs. 2-3).
To verify the implant position, a post-operative panoramic radiograph was taken showing that the apex of the implant sits right below the maxillary sinus floor.
An advantageous surgical goal, bicortical stabilisation was achieved effectively. This phenomenon can sometimes be difficult to attain as it occurs when a surgeon engages more than a single cortical plate when placing a dental implant.
Typically, this is done with the cortical bone of the base of the mandible; or the floor of the maxillary sinus or nasal cavity; and the crestal cortical bone of the edentulous ridge.
Three months later (Fig. 4), a closed tray impression technique was carried out (Figs. 5-6). The delivery of a screw-retained zirconia crown was successful (Figs. 7-8).
Periapical and panoramic radiographs were taken to verify the fully seated restoration (Figs. 9-10).
This case delivered a high-quality dental implant and crown treatment without the need for more surgical downtime while reducing the risks of complication that comes with maxillary sinus lift procedure by using a “short and fat” dental implant. Anthogyr is one of the few implant systems that supply short dental implants.
Published in Dental Asia July/August 2021 issue.
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