The correction of Class I malocclusion with bimaxillary dental protrusion and unilateral free end right upper ridge in adult patient is one of difficult biomechanical case in orthodontics. Because this case needs proper anchorage for upper incisor retraction with missing teeth in the right posterior segment Purpose: This article presented a case of an adult patient with severe bimaxillary protrusion treated with Skeletal Anchorage System (SAS)
. Case: A female patient, 36 year old complaining for the difficulty of lip closure due to severe bimaxillary protrusion with incompetence lip. 
Case Management: Firstly correction of the maxillary and mandibular incisor proclination were done by extraction of the mandibular first premolar, the maxillary second premolar on left side and finally placement of miniplates implant in the zygomatic process on right side as an absolut anchorage. 
Conclusion: The results of this treatment indicated that Skeletal Anchorage System (SAS) can be considered as an effective therapy choice for corection bimaxillary protrusion with unilateral free end ridge.
. Case: A female patient, 36 year old complaining for the difficulty of lip closure due to severe bimaxillary protrusion with incompetence lip. 
Case Management: Firstly correction of the maxillary and mandibular incisor proclination were done by extraction of the mandibular first premolar, the maxillary second premolar on left side and finally placement of miniplates implant in the zygomatic process on right side as an absolut anchorage. 
Conclusion: The results of this treatment indicated that Skeletal Anchorage System (SAS) can be considered as an effective therapy choice for corection bimaxillary protrusion with unilateral free end ridge. 
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