## 3 Discussion  
Mucocele lesions usually occur without particular symptoms and are usually diagnosed during routine clinical checks or if they create discomfort for the patient. Buccal mucosal mucoceles can be bothersome and painful due to their susceptibility to trauma, so surgical removal is almost mandatory. Considering the clinical aspect of the mucocele with other lesions of the oral cavity, such as gingival cysts, palatal cysts, thyoglossal cysts, congenital pupils, vascular hamartoma, lymphoma and oropharyngeal teratoma, [2,17] it is essential to always perform a biopsy examination of the removed lesion to confirm the diagnostic hypothesis. Although the traditional excision technique is considered a simple surgical procedure [18], over the years the development of new technologies has aimed at minimizing tissue and psychological trauma to the patient [19]. In the literature, the authors have demonstrated the efficacy and simplicity of the micro-marsupialization procedure for the treatment of oral ranulae and mucoceles [20]. Authors in the literature argue that a valid therapeutic approach that allows the removal of the lesion is LASER ablation [21]. The effect of CO2 LASER on soft tissues is poorly penetrating and limited to the soft tissue surface alone, but both post-operative bleeding and paresthetic problems of the lower lip have been documented [22]. An effective and non-invasive technique is the intralesional injection of corticosteroids (bethamethasone), recently reported as an efficient, repeatable and economical proce  
Figure 4: Twelve months follow up. The patient showed the labial mucosa of conformation and normal color, without any scars. Figure 5: Histological slides of the cyst specimen. Black arrows (**B**,**C**) indicate benign salivary gland tissue, green arrows (**A**,**C**) indicate foamy microphages, blue arrows (**A**,**B**) indicate skeletal muscle fibers. dure [23]. Its non-surgical nature makes it widely acceptable for patients. However, the protocol includes multiple injections, and therefore patient compliance is critical. The technique reported by us was described for the first time in 1962 by [PERSON] [15], highlighting its practical advantages. The injection of a solid hydrocolloid impression material into the lumen prevents its collapse, and therefore it is easier to remove the cyst wall entirely, preserving the integrity of the surrounding tissues. Complete removal of the cystic wall is essential as the presence of epithelial residues in situ determines the appearance of future relapses of the primary lesion. [PERSON]'s technique is relatively minimally invasive and fulfills the objective described above. The use of hydrocolloid impression material, due to its consistency and its work-hardening time, can present side effects during the procedure such as the possibility of extension of the material in the deep tissue planes with the risk of losing the material to inside the tissues. This complication can lead to the development of a secondary foreign body inflammatory reaction [24]. However, the compatibility of the hydrocolloid material with moist oral soft tissues [25] makes it the material of choice for this type of procedure. The use of irreversible hydrocolloid material to delineate the mucoele boundaries, beyond the simplicity and the cost advantages, facilitates the cleavage plan while keeping the anatomical references of the lesion intact, and might allow a complete removal and minimize the chances of recurrence. This type of combined procedure has been shown to be effective in pediatric patients, especially those suffering from anxiety and fear of the dentist. The mucoele is a pathology recognized as being principally caused by the mechanical trauma deriving from biting minor salivary glands in the inferior lips.