The effect of canine characteristics and symmetry on perceived smile attractiveness when canine teeth are substituted for lateral incisors

Rayner, Wendy Jane; Barber, Sophy; Spencer, Roy W.

doi:10.1179/1465313314y.0000000118

Cited by 10 publications

(28 citation statements)

References 29 publications

(40 reference statements)

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“…Numerous studies have demonstrated the advantages of canine substitution to replace the missing maxillary lateral incisor, including good esthetics [11, 12], long-term periodontal and temporomandibular joint health [13–15], and the avoidance of prosthetic materials in the oral cavity after treatment [16, 17], as well as reduced costs in treatment [16].…”

Section: Introductionmentioning

confidence: 99%

“…And there was a discrepancy in the esthetic perception between laypersons and orthodontists [24]. The laypersons were found to be not as perceptive and critical as the orthodontists when evaluating smile esthetics [11]. A result that was considered by orthodontists to be less than ideal may well be perfectly acceptable to the layperson [11, 22, 24].…”

Section: Introductionmentioning

confidence: 99%

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Canine edge width and height affect dental esthetics in maxillary canine substitution treatment

Wang

et al. 2019

Prog Orthod.

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Background To investigate the effect of canine edge width and height on dental esthetics in maxillary canine substitution treatment. Methods A total of 127 canine substitution treatment cases were screened and evaluated by a panel of orthodontic experts and laypersons in the pilot study. The top five subjects with the esthetically most pleasant canine substitution were included in the study, resulting in 140 computerized images displaying only the upper dentition, with different canine edge widths (0%, 12.5%, 25%, 37.5%, 50%, 62.5%, and 75% of the central clinical width) and heights (− 0.5 mm, 0 mm, 0.5 mm, and 1.0 mm vertically relative to the central incisor edge) finally used for the esthetic evaluation by 101 observers (41 orthodontists and 60 laypersons). The ordered logistic regression analysis, the univariate analysis of variance, the chi-square, and Fisher’s exact tests were used for statistical analyses. Results The most esthetic canine shape for canine substitution was found to be a shape with the edge width of 62.5% of the central incisor width and the edge height of 0.5 mm gingival to the central incisor edge ( P < 0.05). The canine edge width of 50–75% and height of 0.5–0 mm gingival to the central incisor edge were generally considered to be esthetic by all observers. Orthodontists and laypersons had the same ranking on the top two most esthetic canine shapes (edge width and height 62.5% and 0.5 mm gingival; 50% and 0 mm incisal) as well as the bottom two most unesthetic canine shape (0% and 0.5 mm gingival; 75% and 1 mm incisal). Male and female observers generally had similar esthetic grades and rankings on the canine shapes ( P > 0.05). Conclusions The most esthetic canine shape for canine substitution is a shape with the canine edge width of 62.5% of the central incisor width and the edge height of 0.5 mm gingival to the central incisor edge. The different collocations of the canine edge width and height affect dental esthetics of the canine during canine substitution treatment.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Canine edge width and height affect dental esthetics in maxillary canine substitution treatment

Wang

et al. 2019

Prog Orthod.

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“…[9] When the chosen treatment is the insertion of bone integrable implants, the first step is the orthodontic correction in order to open areas where they will be inserted, followed by the surgical procedure to insert the implants and subsequently, the manufacture of the prosthesis on implants. [10] Due to high costs to perform implants, many patients opt for treatment with composite resin, [11] such as in this work, which was initially performed orthodontic treatment to close the spaces, and later the reanatomization with composite resin, with the transformation of canines in lateral incisors and premolars in canines.…”

Section: Discussionmentioning

confidence: 99%

Esthetic rehabilitation with composite resin in a patient with lateral incisor agenesis

Vinha¹,

Kuga²,

Bandéca³

et al. 2015

SJOD

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“…Correct leveling of the marginal gingival contours and the size discrepancy between the canine and first premolar can be potentially corrected by extruding the canine and, at the same time, intruding the first premolar . In a 2015 study by Rayner et al, rating a full‐face image with an ideal smile and digitally altered to display canine substitution, dental professionals rated smiles with canine substitution for lateral incisor agenesis less attractive than an ideal smile unless the size, shape, color, and gingival margin approximated that of the lateral incisor (Figure A through D). Ranking frontal photographs with Photoshop modifications, Ghierens et al reported that darker canine color and a pronounced tip morphology of a substituted canine were rated as the most unattractive by 174 dental professionals and laypeople.…”

Section: Canine Substitutionmentioning

confidence: 99%

The treatment dilemma of missing maxillary lateral incisors‐Part I: Canine substitution and resin‐bonded fixed dental prostheses

Priest

2019

J Esthet Restor Dent

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Objective Clinicians are faced with three common treatment options for the high frequency of missing or lost maxillary lateral incisors; canine substitution, a resin‐bonded fixed dental prosthesis (RBFDP), or a dental implant. A review of current data and guidelines for treatment provide new insight into making the most appropriate selection. Overview The incidence of maxillary incisor agenesis and loss is prevalent. Both canine substitution and RBFDPs exhibit esthetic and functional advantages and disadvantages. Conclusions Most missing lateral incisors are detected at an early age as a result of congenital absence; therefore, proper treatment of these young patients is essential. Both canine substitution and RBFDPs can provide long‐term success and esthetics when carefully executed. The decision should be based on the patient's expectations, their clinical presentation, cost, and the team's ability to provide the best long‐term esthetic and functional prognosis for a specific patient. Clinical significance Patients regularly present for treatment of missing and lost maxillary lateral incisors. The functional and esthetic aspects of canine substitution and a RBFDP should be clearly understood relative to the clinical parameters of each patient prior to treatment.

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The effect of canine characteristics and symmetry on perceived smile attractiveness when canine teeth are substituted for lateral incisors

Abstract: Canine characteristics and observer status will affect how canine substitution for lateral incisor agenesis is viewed in terms of aesthetic outcome.

Cited by 10 publications

References 29 publications

Canine edge width and height affect dental esthetics in maxillary canine substitution treatment

Canine edge width and height affect dental esthetics in maxillary canine substitution treatment

Esthetic rehabilitation with composite resin in a patient with lateral incisor agenesis

The treatment dilemma of missing maxillary lateral incisors‐Part I: Canine substitution and resin‐bonded fixed dental prostheses

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