International Journal of Experimental Dental Science
Volume 8 | Issue 2 | Year 2019

Evaluation of Difference in Healing of Gingival Tissue after Frenectomy Done by Laser as Compared to Conventional Surgical Technique: A Case Study

Avnika Garg1, Pooja Mehra2, Baljeet Singh3

1Department of Periodontology, Himachal Dental College, Sundarnagar, Himachal Pradesh, India
2Department of Periodontology, Baba Jaswant Singh Dental College and Hospital, Ludhiana, Punjab, India
3Department of Periodontology, Bhojia Dental College and Hospital, Baddi, Himachal Pradesh, India

Corresponding Author: Avnika Garg, Department of Periodontology, Himachal Dental College, Sundarnagar, Himachal Pradesh, India, Phone: +91 9915629767, e-mail:

How to cite this article Garg A, Mehra P, Singh B. Evaluation of Difference in Healing of Gingival Tissue after Frenectomy Done by Laser as Compared to Conventional Surgical Technique: A Case Study. Int J Experiment Dent Sci 2019;8(2):38–41.

Source of support: Nil

Conflict of interest: None


The frenum is a fold of mucous membrane that attaches the lip and the cheek with the alveolar mucosa, the gingiva, and the underlying periosteum. The labial frenum may jeopardize the gingival health when it impedes oral hygiene, or when it is attached too closely to the gingival margin, thus, resulting in the formation of diastema between anterior teeth and/or traction of the attached gingiva. The management of such an aberrant frenum can be accomplished by performing a frenectomy procedure using different techniques with different outcomes of healing. Here, in the present study, healing after frenectomy performed using a laser has been compared to healing after frenectomy done using conventional surgical technique.

Keywords: Aberrant frenum, Frenum, Laser, Scalpel.


The labial frenum is an anatomical landmark that joins the lips and cheeks with the maxillary and mandibular alveolar processes. The frenum is a mucous membrane fold that consists of connective tissue comprising of elastic and collagen fibers and sometimes, muscular fibers originating from the orbicularis. This fold, which is covered by stratified epithelium contains vascular structures with thin peripheral nervous ramifications.1 Ideally, the insertion of the frenum should be located at the level of the mucogingival junction, such that it does not interfere with the adhesion of the attached gingiva; however, clinically, a number of conditions are observed related to the frenum’s insertion.1,2 Placek et al. classified the frenum based on its anatomical situ of insertion: Mucosal, gingival, papillary, or penetrating.3,4

Regardless of its anatomy, if a frenum has an insertion, which is potentially harmful, then it is considered as an anomalous frenum.2 For example, the maxillary labial frenum may retract the gingival margin, create a diastema, limit movement of lip, and produce a high smile line.5 Thus, failure to diagnose pathological insertion of the frenum may lead to certain developmental anomalies in the maxillary anterior region (like the fusion of the premaxilla) of neonatal or youth patients.6,7 This aberrant frenum can be treated by mucogingival procedures, frenectomy which is the complete removal of the frenum including its attachment to the underlying bone, or by, frenotomy which is the incision and the relocation of the frenal attachment.8

Frenectomy procedure can be performed by the routine scalpel technique, electrosurgery or by using lasers. The most practiced conventional technique involves excision of the frenum by using a scalpel; however, it carries the routine risks of surgery like bleeding and patient discomfort. Recently, with the introduction of lasers, it has been reported as a safe and effective for frenectomy procedures as it offers advantages of a shorter duration of the surgery, simplicity of the procedure, hemostatic control, the absence of postoperative infections, less pain, swelling and the presence of a small or no scar.9

Thus, the present study was done with an aim to compare healing after frenectomy performed using a laser as compared to healing after frenectomy done using the conventional surgical technique.


Case 1: Frenectomy Done with Conventional Surgery

A 26-year-old female patient was referred to the Department of Periodontology, Bhojia Dental College and Hospital, Baddi, Himachal Pradesh, in 2014, with a chief complaint of spacing between maxillary central incisors and unacceptable esthetics (Fig. 1). The patient was in excellent general health with no significant history of allergies, medications, or tobacco. After clinical examination, the abnormal maxillary labial frenum was detected visually by the blanching test, i.e., by applying tension over the frenum to see the movement of the papillary tip (Fig. 2). On examination, the attached gingiva was found to be inadequate for maxillary central incisors. After bilateral infraorbital block was given with local anesthesia (2% lignocaine with 1:100,000 adrenalin), surgery consisted of a V-shaped incision of the margins of the frenum, thus moving the apex of the frenum to a more apical position (Fig. 3). Horizontal and vertical incisions were made in the fibers attached to the periosteum, followed by the placement of one or two sutures (Fig. 4). The entire procedure took 15–20 minutes. Sutures were removed after 1-week postoperatively (Fig. 5). Postoperative healing was seen after 1-week and 1-month.

Fig. 1: Patient with spacing between maxillary incisors

Fig. 2: Tension (blanch) test performed between central incisors

Fig. 3: Surgery done with conventional surgical technique

Fig. 4: Sutures placed technique in a V-shaped incision

Fig. 5: Sutures removed after 1 week

Fig. 6: Patient with spacing between two maxillary central incisors

Case 2: Frenectomy Done with Laser

A 42-year-old male patient reported to the Department of Periodontology, Bhojia Dental College and Hospital, Baddi, Himachal Pradesh, in 2014 with a chief complaint of spacing between two central incisors (Fig. 6). The patient had excellent general health with no known history of allergies, medication, or tobacco. After clinical indications for surgery were determined (Fig. 7), a frenectomy was performed for maxillary labial frenum using a diode laser at 810 nm wavelength and 1.5 watts. Local infiltration from 2 mL of local anesthetic was used (2% lignocaine with 1:100,000 adrenalin). The first incision was made along the axis of the frenum in the sagittal plane, continuing with a V-design, which followed the frenum insertion (Fig. 8), and finally, a light incision was made along the mucogingival junction of the periosteum. The procedure was completed with horizontal vaporizations to dislocate the connective fibers (Fig. 9); the entire process took 7–10 minutes. No sutures were required, and patient was recalled after 1-week (Fig. 10) and 1-month postoperatively.

Fig. 7: Tension (blanch) test positive

Fig. 8: Incisions made wide diode laser

Fig. 9: Horizontal connective tissue fibers removed

Fig. 10: View after 1 week postoperative

Both the patients received the same postoperative instructions, which included a soft and cold diet for the meal immediately following surgery and avoiding spicy foods for 24 hours after the surgery. Anti-inflammatory analgesics (NSAIDs) were not necessary for both cases. Both the patients were instructed to perform usual daily oral hygiene procedures for the whole mouth but, avoiding the treated area. Rinses with 0.2% chlorhexidine mouthwash, twice a day, were prescribed to both patients for seven days postoperatively. Follow-up visits were conducted at 7 and 30 days posttreatment. At these visits, the treated areas were checked for soft tissue appearance, any adverse events (including functional complications), or any other symptoms reported by the patients.


At each postoperative visit, the patients reported no post-interventional pain, bleeding, scar formation, or any other adverse event. In addition, clinicians did not observe any undesirable clinical findings for both the procedures. In conventional surgical technique, healing occurred by primary intention as the margins of the wound were approximated by the sutures. Whereas, in frenectomy performed with laser, the healing process of the wound occurred by secondary intention since the wound margins were not close to each other.


Mucous folds or frena are normally found between the central incisors and in the canine premolar area of the maxillary and mandibular alveolar mucosa.10 A hypertrophic, fibrotic, ample, fan-shaped, or bifid-ending structure is described as an abnormal frenum that requires treatment.11,12 Frenectomy can be performed by the routine scalpel method technique, electrosurgery, or by using lasers. The conventional technique carries the routine risks of surgery like bleeding and patient compliance.9

Because of their capability to execute precise surgical incisions and excellent hemostatic control, lasers have been utilized in surgery, but, the results depend on the type of laser used and the tissue on which it is used (that is, whether the tissue has high collagen, hemoglobin, or water content).13,14 Lasers offer two important advantages over traditional scalpel surgery: firstly, it eliminates the use of sutures as there is rapid establishment of hemostasis, and secondly, the level of patient comfort is increased many folds. Some authors have also suggested that the direct effect on the surface of the targeted tissue is the creation of a coagulum of proteins, which produces a natural barrier that protects the underlying live connective tissue and increases the postoperative comfort.1517 Thus, the use of laser has been reported as a safe and effective procedure for frenectomy procedure with the advantages of a shorter duration of surgery, simplicity of the procedure, the absence of postoperative infections, less pain, swelling, and the presence of a small or no scar.18

In the present study also, laser led to a considerable reduction in operating time. It also reduced the amount of local anesthetic used during the procedure and made it possible to avoid the placement of surgical sutures. Furthermore, tissue responded well to this approach with no postoperative complications.


An aberrant frenum can be removed by any of the techniques that have been discussed in the article. However, a functional and esthetic outcome can be achieved by a proper technique selection, based on the type of frenal attachment, clinician experience, and patient’s choice. Every technique has its own merits and demerits, but further improvements can still be attempted.


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