Sinus lifts in the presence of pseudoantral and mucous retention cysts

Abstract

Objectives Mucous retention cysts and pseudoantral cysts are mainly located within the floor of the maxillary sinus. Most of these maxillary cysts are asymptomatic and often only require observation. However, the presence of these benign maxillary cysts may create problems when maxillary sinus all types of implants are needed. Various treatment methods have been introduced. The selected treatment option depends on the type, size, and location of the cyst and its symptoms. Patients and Methods The case reports of four patients with maxillary cysts were reviewed retrospectively. These patients received a sinus lift between January 2016 and October 2021 at the Wonkwang University Dental Hospital. Results To reduce unnecessary operations and the duration of treatment, a conservative treatment method is required. A sinus lift in the presence of maxillary cyst will not typically cause sinus problems if the lifted sinus membrane does not interfere with ventilation of the maxillary sinus. Conclusion When proper treatment is provided, sinus perforation during a sinus lift performed in the presence of maxillary cyst and contamination of bone graft materials by cystic fluid does not necessarily result in adverse outcomes.

Croco Eye Technique: Mucous Retention Cyst Excision with Immediate Open Sinus Lift—A Retrospective Cohort Study

“…Also, a study by Choi et al [ 17 ] describes different approaches for different sizes of retention cysts. Nevertheless, the CET is universal for all sizes of mucous retention cysts, which is much easier for the clinician to remember and implement.…”

Treatment of Mucous Retention Cyst in Association with Sinus Lift and Implant Placement: A Case Report with 1-Year Follow-Up

“…Treatment of those lesions during the sinus augmentation procedure by aspiration or surgical excision is very well documented in the literature and some authors state that decreasing the cyst volume by aspiration helps to reduce the intra-sinus pressure and thus, the risk of perforation of the Schneiderian membrane [ 10 , 11 , 23 , 24 , 25 ].…”

“…Disagreements exist about the indications of the sinus lifting procedure when MRC and APC are present, without previous treatment and a waiting period for healing achievement [10,11]. Treatment of those lesions during the sinus augmentation procedure by aspiration or surgical excision is very well documented in the literature and some authors state that decreasing the cyst volume by aspiration helps to reduce the intra-sinus pressure and thus, the risk of perforation of the Schneiderian membrane [10,11,23,24,25].…”

“…For other authors, patients could undergo sinus lifting with no lesion removal, in a single stage or delayed approach [ 24 ].…”

“…Some authors reflected their existence as a contraindication and suggested a previous lesion removal before grafting [22]. Six months later, the sinus grafting could be performed and implants could be placed at the Case Reports in Dentistry same time or postponed for a period of 3 months to achieve an osseointegration For other authors, patients could undergo sinus lifting with no lesion removal, in a single stage or delayed approach [24].…”