Clinical efficacy of lip repositioning technique and its modifications for the treatment of gummy smile: systematic review and meta-analysis

Mendoza-Geng, Andrea; Meza‐Mauricio, Jonathan; Muniz, Francisco Wilker Mustafa Gomes; Vergara‐Buenaventura, Andrea

doi:10.1007/s00784-022-04467-0

Cited by 10 publications

(21 citation statements)

References 53 publications

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“…Knowing that the lip repositioning technique, being classic or modified, has the objective of limiting muscle traction, reducing the deep of the upper vestibule with an expected average improvement of 3.4 mm ± 0.4 mm of GD [14], the results found in this study presented an average reduction of 4.42 mm in 6 months and 4.13 mm in 12 months (Table 3), which corroborate with the outcomes found with the application of the modified technique [16,18,30,38,39]. Likewise, literature shows that lip repositioning by using the classical technique is also able to achieve good results, with an average of 4.5 mm reduction in 6 months [16,32]. It is worth mentioning that the results obtained with the proposed technique had a high degree of satisfaction (Figure 10), which was similarly recorded by the patients of other studies by using other techniques of lip repositioning [16,20].…”

Section: Discussionsupporting

confidence: 87%

“…It is worth mentioning that the results obtained with the proposed technique had a high degree of satisfaction ( Figure 10 ), which was similarly recorded by the patients of other studies by using other techniques of lip repositioning [ 16 , 20 ].…”

Section: Discussionsupporting

confidence: 77%

“…Inspired by the randomized study of the modified techniques of lip repositioning with and without myotomy [ 10 ], this research adopted the technique with myotomy since it promotes better results in terms of stability [ 14 , 16 , 20 ]. Some authors ratify this information by showing that the results of modified lip repositioning surgery remained stable for up to six months postoperatively, presenting only a few cases with relapse.…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Currently, there are six modified techniques of lip repositioning [ 16 ]. The lip repositioning technique with muscle rupture (myotomy) is more successful than the technique without myotomy when compared [ 10 , 16 – 20 ]. However, among all the modified lip repositioning techniques that existed, the one with periosteal suturing presented the greatest reduction in the gingival display of the patients; nevertheless, relapse is still recurrent [ 16 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

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A Lip Repositioning Technique Using Polyester Threads for Gummy Smile Treatment

Horn

Elias

Joly

2022

International Journal of Dentistry

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A new technique is proposed in this study to correct the gummy smile (GS) with myotomy, combining lip repositioning with the insertion of polyester threads at the surgical site to act as a physical barrier and control relapse. 11 patients were clinically assessed (30.2 ± 7.43 years old, 90.9% females and 9.10% males). All patients presented gingival display (GD) greater than 4 mm. Hypermobile upper lip (HUL), vertical maxillary excess (VME) + HUL, altered passive eruption (APE) + HUL, and VME + APE were the etiologies identified. Three polyester threads were inserted in each patient one month after the surgery. The GS was measured before, 6 months, and 12 months after the surgery. The results showed a reduction in the mean GD of the patients, 4.42 mm after 6 months ( p value = 0.000) and 4.13 mm after 12 months ( p value = 0.000). The largest relapse was 0.29 mm and was not statistically significant ( p value = 0.07). The Friedman test with pairwise comparisons was used to determine the existence of statistically significant differences in GD between the periods analyzed. The results showed that the proposed technique was successful in treating GS, presenting significant reductions in the GD 12 months after surgery and controlling the relapse.

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Section: Discussionsupporting

confidence: 87%

Section: Discussionsupporting

confidence: 77%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A Lip Repositioning Technique Using Polyester Threads for Gummy Smile Treatment

Horn

Elias

Joly

2022

International Journal of Dentistry

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Treatment of gummy smile combining crown lengthening, lip repositioning, and the use of polyester threads

Horn

Joly

2022

Clin Adv Periodontics

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Introduction:The case report presents a new possibility of treatment for a gummy smile in a patient with multiple etiologies, such as altered passive eruption and hypermobility upper lip. At first, crown lengthening was not sufficient to achieve the desired aesthetic result, being necessary its combination with lip repositioning. Case Presentation: Crown lengthening surgery (CLS) was performed in a 20year-old woman, with a gingival display of 7.5 mm, having her gingival exposure reduced to 5.5 mm. Because the patient continued unsatisfied after 6 months, a new procedure was adopted. To reduce even more her gingival exposure, lip repositioning technique was performed associated with myotomy and the insertion of polyester threads as a physical barrier to prevent relapse. Conclusion:The result of the gingival display was reduced to 2.5 mm, removing the condition of a gummy smile after the combination of both techniques: crown lengthening, and lip repositioning.

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