The factors of open gingival embrasure space between central incisors after orthodontic treatment in adult patients

Kozai, Yoko; Tamaki, Yoh; Nomura, Yasuo; Kaida, Kiyokazu

doi:10.1016/j.odw.2009.12.003

Cited by 2 publications

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“…7,8 In previous studies, only nonextraction patients were included, 8 or other contributing factors such as age, tooth shape, and alveolar bone crest were not considered. 7,8 To overcome these limitations, this study included extraction and nonextraction patients and analyzed various other factors in combination, including tooth movement. Among multiplanar orthodontic movements, the multiple logistic regression analysis revealed that only lingual movement of the maxillary incisors was a significant factor (P , .05).…”

Section: Discussionmentioning

confidence: 99%

“…Recent studies have reported that the movement of teeth during orthodontic treatment could also affect the occurrence of open gingival embrasures. [7][8][9] Unfortunately, in these studies, the occurrence was investigated only with consideration of the parameters of tooth movement and not in combination with other predisposing factors such as crowding, alveolar bone height, position of the contact point, tooth shape, and others.…”

Section: Introductionmentioning

confidence: 99%

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Risk factors associated with open gingival embrasures after orthodontic treatment

Choi

Kim

et al. 2018

The Angle Orthodontist

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Objectives: To investigate the incidence of and contributing factors to open gingival embrasures between the central incisors after orthodontic treatment. Materials and Methods: One hundred posttreatment patients (29 men and 71 women; mean age, 24.7 years) were divided retrospectively into occurrence and nonoccurrence groups based on intraoral photographs. Based on the severity, the occurrence group was further divided into mild, moderate, and severe groups. Parameters from periapical radiographs, superimposed lateral cephalograms, and study models were compared between the occurrence and the nonoccurrence groups by using independent t-tests and were also analyzed on the basis of severity via analysis of variance. Logistic regression analysis was performed to identify the contributing factors to open gingival embrasures. Results:The incidence of open gingival embrasures between the central incisors was 22% and 36% in the maxilla and the mandible, respectively. Lingual movement of the incisors, distance from the contact point to the alveolar crest after treatment, antero-posterior overlap of the two central incisors before treatment in the maxilla, and distance from the contact point to the alveolar crest after treatment in the mandible were significantly associated with the occurrence of open gingival embrasures (P , .05). In the mandible, the amount of intrusion was significantly related to severity (P , .05). Conclusions:The incidence of open gingival embrasures following orthodontic tooth movement is high. Therefore, attention should be paid to the contributing factors to prevent or reduce the occurrence of open gingival embrasures. (Angle Orthod. 2018;88:267-274.)

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Risk factors associated with open gingival embrasures after orthodontic treatment

Choi

Kim

et al. 2018

The Angle Orthodontist

View full text Add to dashboard Cite

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The Occurrence and Risk Factors of Black Triangles Between Central Incisors After Orthodontic Treatment

Jung,

Lim,

Lee

et al. 2024

Diagnostics

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Background/Objectives: To assess the incidence of and risk factors for black triangles between the central incisors after orthodontic treatment; Methods: Ninety-seven post-treatment patients (29 men and 68 women; mean age, 22.7 years) were retrospectively divided into two groups based on the presence or absence of black triangles, using intraoral photographs. Based on the Jemt Index, the black triangle occurrence group was further classified into mild, moderate, and severe groups. Parameters from periapical radio graphs, lateral cephalograms, and study models were compared between the occurrence and the non-occurrence groups by using independent t-tests. Logistic regression analysis was performed to identify the risk factors for black triangles; Results: The incidence of black triangles between the central incisors was 51% and 64% in the maxilla and in the mandible, respectively. The factors significantly associated with the occurrence of black triangles were age, treatment duration, the lingual inclination of the maxillary incisors in the maxilla, and age in the mandible (p < 0.05); Conclusions: This study showed the diverse risk factors associated with black triangles between central incisors after orthodontic treatment and revealed that the formation of black triangles is relatively common. Considering these risk factors during orthodontic diagnosis and treatment planning can help minimize the occurrence of black triangles.

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The factors of open gingival embrasure space between central incisors after orthodontic treatment in adult patients

Cited by 2 publications

References 0 publications

Risk factors associated with open gingival embrasures after orthodontic treatment

Risk factors associated with open gingival embrasures after orthodontic treatment

The Occurrence and Risk Factors of Black Triangles Between Central Incisors After Orthodontic Treatment

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