IMPLANT TIP INSERTION IN THE MEDIAL WALL OF THE MAXILLARY SINUS TO OBTAIN FIXTURE PRIMARY STABILITY DURING SINUS LIFT PROCEDURE BY LATERAL WINDOW TECHNIQUE

¹ Private practice, Via Azzurra 26, 40138 Bologna, Italy

Correspondence to:

Annals of Stomatology 2023 May-August; 3(2): 54-62
https://doi.org/10.69129/stomatol/2023v3iss2_6

Received: 31 July 2023 Accepted: 30 August 2023

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Abstract

Maxillary sinus lift (MSL), a cornerstone in implant dentistry, requires a deep understanding of various surgical techniques to address bone deficiencies in the posterior maxilla. MSL by lateral approach is the elective procedure in case of extreme bone atrophies of the sinus floor. When the residual bone thickness is less than 3 mm, MSL by lateral approach is possible but not immediate implant insertion due to lack of fixture primary stability. In these cases, primary fixture stability can be obtained by bi-cortical stabilization.  After Scheniderian membrane elevation, the implant is inserted through the alveolar crest and fixed to the maxillary sinus mesial (nasal) wall, leading to an implant’s primary stability. Here, a case series is reported.

Keywords: fixture, implant, jaw, lift, maxilla, sinus