The Relationship between Maxillary Midline Diastema and Maxillary Labial Frenum

Jianhua WU; Lili YANG; Ting ZHOU; Sijia MA

doi:10.12259/j.issn.2095-610X.S20220619

Volume 43 Issue 6

Jun. 2022

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Jianhua WU, Lili YANG, Ting ZHOU, Sijia MA. The Relationship between Maxillary Midline Diastema and Maxillary Labial Frenum[J]. Journal of Kunming Medical University, 2022, 43(6): 63-67. doi: 10.12259/j.issn.2095-610X.S20220619

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Jianhua WU, Lili YANG, Ting ZHOU, Sijia MA. The Relationship between Maxillary Midline Diastema and Maxillary Labial Frenum[J]. Journal of Kunming Medical University, 2022, 43(6): 63-67. doi: 10.12259/j.issn.2095-610X.S20220619

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The Relationship between Maxillary Midline Diastema and Maxillary Labial Frenum

doi: 10.12259/j.issn.2095-610X.S20220619

Jianhua WU^{1, 2},
Lili YANG^{1, 2},
Ting ZHOU^{1, 2},
Sijia MA^{1, 2
,
,}

1.
Department of periodontology，Kunming Medical University School and Hospital of Stomatology，Kunming 650106，China
2.
Yunnan Key Laboratory of Stomatology，Kunming 650106，China

Received Date: 2022-03-27
Available Online: 2022-06-07
Publish Date: 2022-06-30

Abstract

Abstract

Objective To find out the relationship between maxillary midline diastema and maxillary labial frenum, develop an appropriate diagnosis and treatment plan for patients with aesthetic demands in the clinic. Methods 106 qualified volunteers were recruited from September 2021 to December 2021. The volunteers were divided into two groups: 50 in the control group and 56 in the study group （with maxillary median space）. The size of maxillary midline diastema was measured. The study group was divided into two groups: 0.5～2 mm group and > 2 mm group; The type of maxillary labial frenum and gingival biotype were evaluated respectively. Results 48% of the 50 volunteers in the control group were mucosal type and 52% were gingival type. In the study group, the mucosal, gingival, and papillary type in the 0.5～2 mm group （36 volunteers） were 33.3%, 47.2% and 19.5% respectively, and there was no papillary penetrating type; in the > 2 mm group （20 volunteers）, the mucosal, gingival, papillary and papillary penetrating type were 10%, 10%, 15% and 65% respectively, Chi square test showed that there was significant difference between the attachment type of Maxillary labial frenum and the gap width （χ² = 77.176, P < 0.001）, that is, the distribution of the attachment type among the three gap widths was different. In the control group, 50% of the gingival biotypes were thin gingival type and 50% were thick gingival type. In the study group, 28.6% of the gingival biotypes were thin gingival type and 71.4% were thick gingival type. There was significant difference between the two groups （χ² = 5.114, P = 0.024）. Conclusions The attachment type of maxillary labial frenum is related to the midline diastema. The attachment position of maxillary labial frenum in patients with maxillary midline diastema is closer to the gingival margin than those without diastema. The maxillary midline diastema > 2 mm is significantly related to papilla penetrating attachment. The gingival biological type is mainly thick gingival type.
- Maxillary midline diastema,
- Maxillary labial frenum,
- Gingival biotype

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References(17)

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