A dimple, also called a gelasin (, ) is a small natural indentation in the flesh on a part of the human body, most notably in the
cheek
The cheeks ( la, buccae) constitute the area of the face below the eyes and between the nose and the left or right ear. "Buccal" means relating to the cheek. In humans, the region is innervated by the buccal nerve. The area between the insi ...
. Numerous cultures believe that cheek dimples are a good luck charm that entices people who perceive them as physically attractive, but they are also associated with heroism and innocence, which has been included in literature for many centuries.
Medical research debates whether cheek dimples can be inherited or which type of
allele
An allele (, ; ; modern formation from Greek ἄλλος ''állos'', "other") is a variation of the same sequence of nucleotides at the same place on a long DNA molecule, as described in leading textbooks on genetics and evolution.
::"The chro ...
they are, but it is certain that humans with cheek dimples are more likely to have them in both cheeks. Depth and length appearances are affected by the shape of the skull and dimples can appear and disappear due to age. There are four types of facial dimples, including cheek, and the
cleft chin
The chin is the forward pointed part of the anterior mandible ( mental region) below the lower lip. A fully developed human skull has a chin of between 0.7 cm and 1.1 cm.
Evolution
The presence of a well-developed chin is considered to be one ...
(sometimes nicknamed a "chin dimple").
Overview
Cheek dimples when present, show up when a person makes a facial expression, such as smiling, whereas a chin dimple is a small line on the chin that stays on the chin without making any specific facial expressions. Dimples may appear and disappear over an extended period; a baby born with dimples in their cheeks may lose them as they grow into a child due to their diminishing baby fat.
Anatomy
Dimples are usually located on mobile tissue,
and are possibly caused by variations in the structure of the facial muscle known as
zygomaticus major
The zygomaticus major muscle is a muscle of the human body. It extends from each zygomatic arch (cheekbone) to the corners of the mouth. It is a muscle of facial expression which draws the angle of the mouth superiorly and posteriorly to allow one ...
. Specifically, the presence of a double or bifid zygomaticus major muscle may explain the formation of cheek dimples. This bifid variation of the muscle originates as a single structure from the
zygomatic bone
In the human skull, the zygomatic bone (from grc, ζῠγόν, zugón, yoke), also called cheekbone or malar bone, is a paired irregular bone which articulates with the maxilla, the temporal bone, the sphenoid bone and the frontal bone. It is s ...
. As it travels anteriorly, it then divides with a superior bundle that inserts in the typical position above the corner of the mouth. An inferior bundle inserts below the corner of the mouth.
Cheek dimples can occur in any person, but some studies have suggested that dimples (both cheek and chin) are more common in females. They can be either permanent,
or transient (aging makes dimples appear/disappear due to facial development and muscle growth):
a Greek study spanning almost 20 years concluded that 34% of Greek adults had dimples whereas 13% of Greek youths (between 7 and 15 years old) had dimples as well, which might suggest that transient dimples are more common than permanent.
Professor John McDonald, citing limited research, concluded that dimples have been mislabeled as genetically inherited and as a
dominant trait
In genetics, dominance is the phenomenon of one variant (allele) of a gene on a chromosome masking or overriding the effect of a different variant of the same gene on the other copy of the chromosome. The first variant is termed dominant and t ...
.
[ It is believed that cheek dimple genes occur on the 16th ]chromosome
A chromosome is a long DNA molecule with part or all of the genetic material of an organism. In most chromosomes the very long thin DNA fibers are coated with packaging proteins; in eukaryotic cells the most important of these proteins are ...
, whereas cleft chin genes occur on the 5th. However, the University of Utah
The University of Utah (U of U, UofU, or simply The U) is a public research university in Salt Lake City, Utah. It is the flagship institution of the Utah System of Higher Education. The university was established in 1850 as the University of De ...
considers dimples an "irregular" dominant trait that is probably controlled mostly by one gene but is influenced by other genes.
Characteristics
Having bilateral dimples (dimples in both cheeks) is the most common form of cheek dimples. In a 2018 study of 216 people aged 18–42 with both unilateral (one dimple) and bilateral, 120 (55.6%) had dimples in both of their cheeks. It was originally concluded that 60% of people with one dimple likely have it in their left cheek, but later research concluded that 53% were on the right, however, this may be due to differing cultures. Dimples are analogous
Analogy (from Greek ''analogia'', "proportion", from ''ana-'' "upon, according to" lso "against", "anew"+ ''logos'' "ratio" lso "word, speech, reckoning" is a cognitive process of transferring information or meaning from a particular subject ...
and how they form in cheeks varies from person to person. Dimple depth and size can also vary; unilateral dimples are usually large, and a possible 12.8% of bilateral people have dimples positioned asymmetrically. They are not linked with a dimpled chin: a study from 2010 by the University of Ilorin
University of Ilorin, also known as Unilorin, is a federal government-owned university in Ilorin, Kwara State, Nigeria. It was established by a decree of the federal military government in August, 1975. The establishment aimed to implement one o ...
examined 500 Yoruba
The Yoruba people (, , ) are a West African ethnic group that mainly inhabit parts of Nigeria, Benin, and Togo. The areas of these countries primarily inhabited by Yoruba are often collectively referred to as Yorubaland. The Yoruba constitute ...
n Nigerians with both uni- and bilateral cheek dimples, discovering that only 36 (7.2%) had a cleft chin as well.
The shape of a person's face can affect the look and form as well: leptoprosopic (long and narrow) faces have long and narrow dimples, and euryprosopic (short and broad) faces have short, circular dimples. People with a mesoprosopic face are more likely to have dimples in their cheeks than any other face shape. Singaporean plastic surgeon Khoo Boo-Chai (1929–2012) determined that a cheek dimple occurs on the intersecting line between the corner of the mouth and the outer canthi
The canthus (pl. canthi, palpebral commissures) is either corner of the eye where the upper and lower eyelids meet. More specifically, the inner and outer canthi are, respectively, the medial and lateral ends/angles of the palpebral fissure.
T ...
of the eye, (nicknamed the "KBC point" in dimple surgery) but people with natural dimples do not always have their dimples on the KBC point. The other common type of facial dimple form near the mouth in three types: lower para-angle (underneath the mouth and lips), para-angle ("around the mouth angle"), and upper para-angle (above the mouth and lips).
Society and culture
Cheek dimples are often associated with youth and beauty and are seen as an attractive quality in a person's face, accentuating smiles and making the smile look more cheerful and memorable. Throughout numerous cultures and history, there have been superstitions based on dimples: Chinese culture believes that cheek dimples are a good luck charm
In most contexts, the concept of good denotes the conduct that should be preferred when posed with a choice between possible actions. Good is generally considered to be the opposite of evil and is of interest in the study of ethics, morality, ph ...
(particularly, children born with them are seen as pleasant, polite and enthusiastic), but can lead to complicated romantic relationships; Haitian mothers gently form indents into newborns' cheek in hopes of molding dimples into the child's face; and a proverb (often incorrectly credited to Pope Paul VI
Pope Paul VI ( la, Paulus VI; it, Paolo VI; born Giovanni Battista Enrico Antonio Maria Montini, ; 26 September 18976 August 1978) was head of the Catholic Church and sovereign of the Vatican City State from 21 June 1963 to his death in Augus ...
) argues "A dimple in your cheek/Many hearts you'll seek/A dimple in your chin/The devil within". According to ''Candy Bites: The Science of Sweets'', the dent in Junior Mints
Junior or Juniors may refer to:
Arts and entertainment Music
* ''Junior'' (Junior Mance album), 1959
* ''Junior'' (Röyksopp album), 2009
* ''Junior'' (Kaki King album), 2010
* ''Junior'' (LaFontaines album), 2019
Films
* ''Junior'' (1994 ...
is based on this belief, arguing that a unilateral dimple is more attractive than bilateral. Richard Steele
Sir Richard Steele (bap. 12 March 1672 – 1 September 1729) was an Anglo-Irish writer, playwright, and politician, remembered as co-founder, with his friend Joseph Addison, of the magazine ''The Spectator''.
Early life
Steele was born in D ...
wrote that a dimpled laugh "is practised to give to the features, and is frequently made a bait to entangle a gazing lover; this was called by the ancients the Chian laugh." He added: "The prude hath a wonderful esteem for the Chian laugh or dimple ..and is never seen upon the most extravagant jests to disorder her countenance with the ruffle of a smile utvery rarely takes the freedom to sink her cheek into a dimple" implying that dimples are alluring due to demure women that have them.
''The Englishwoman's Magazine'' from 1866 featured an article named "The Human Form Divine: Dimples and Wrinkles", which associated cheek dimples with youth. On transient dimples, it wrote: "But generally, dimples mark the departure of youth, and fade away at the approach of crow's feet"; "Did you ever see a pretty child's face without dimples in it? Dimples in the cheek—temping dimples—and a dimple in the chin that gave a roguish smartness to the face?" British boxer-turned-Hollywood actor Reginald Denny had his cheek dimples gushed about in a '' Photoplay'' article, which Professor Michael Williams inferred that "dimples might also provide a humanizing touch" in the handsome Denny who had "dimples in conjunction with the physique of a young Greek god
Women without dimples are said to envy the women that have them because dimples are "pitfalls for the men" that " resomething purely natural and unattainable by art". While it is not possible to give a definite explanation as to why dimples are attractive on a woman, researchers believe this "neutral feature" can be linked to paternity confidence, which is the ability of a man to easily distinguish his own offspring. This has led to artificial attempts to create them: the Ohio-based Dolly Dimpler company advertized in ''Photoplay'' about a device that created dimples in customers' cheeks; in 1936, Isabella Gilbert invented the Dimple Maker, a face-fitting brace which pushed dents into the cheeks to emulate dimples, but it is unknown whether the artificial dimples could last this way (the American Medical Association
The American Medical Association (AMA) is a professional association and lobbying group of physicians and medical students. Founded in 1847, it is headquartered in Chicago, Illinois. Membership was approximately 240,000 in 2016.
The AMA's sta ...
argued that frequent users could develop cancer); and in the 21st century, people undergo dimple surgery.
In fiction
The sentiments appear in fiction: authors have described dimples in their characters for centuries to show beauty, especially in women, which has been seen as part of their sex appeal. This is possibly why cheek dimples have been identified with female characters: Anne from '' Anne of Green Gables'' envied other female characters' dimples, whereas ''Wives and Daughters
''Wives and Daughters, An Every-Day Story'' is a novel by Elizabeth Gaskell, first published in the ''Cornhill Magazine'' as a serial from August 1864 to January 1866. It was partly written whilst Gaskell was staying with the salon hostess M ...
'' featured a paragraph about Molly wondering whether she was beautiful as she looked in her mirror, which was followed by: "She would have been sure if, instead of inspecting herself with such solemnity, she had smiled her own sweet merry smile, and called out the gleam of her teeth, and the charm of her dimples." Scarlett O'Hara
Katie Scarlett O'Hara Hamilton Kennedy Butler is a fictional character and the protagonist in Margaret Mitchell's 1936 novel ''Gone with the Wind'' and in the 1939 film of the same name, where she is portrayed by Vivien Leigh. She also is the ...
exploited her cheek dimples in ''Gone with the Wind
Gone with the Wind most often refers to:
* ''Gone with the Wind'' (novel), a 1936 novel by Margaret Mitchell
* ''Gone with the Wind'' (film), the 1939 adaptation of the novel
Gone with the Wind may also refer to:
Music
* ''Gone with the Wind'' ...
'' when she was flirting to get her own way, to the point where Rhett is implied to be aware of what she is doing.[: "Better stick to your own weapons—dimples, vases, and the like."]
Shakespeare
William Shakespeare ( 26 April 1564 – 23 April 1616) was an English playwright, poet and actor. He is widely regarded as the greatest writer in the English language and the world's pre-eminent dramatist. He is often called England's natio ...
often acknowledged cheek dimples, usually on children, such as "the pretty dimples of he baby boy'schin and cheek" in ''The Winter's Tale
''The Winter's Tale'' is a play by William Shakespeare originally published in the First Folio of 1623. Although it was grouped among the comedies, many modern editors have relabelled the play as one of Shakespeare's late romances. Some crit ...
'' or the "pretty dimpled boys, like smiling Cupids" from '' Antony and Cleopatra''; however, Adonis
In Greek mythology, Adonis, ; derived from the Canaanite word ''ʼadōn'', meaning "lord". R. S. P. Beekes, ''Etymological Dictionary of Greek'', Brill, 2009, p. 23. was the mortal lover of the goddess Aphrodite.
One day, Adonis was gored by ...
' in '' Venus and Adonis'' are mentioned from the point of view of the flirting Venus
Venus is the second planet from the Sun. It is sometimes called Earth's "sister" or "twin" planet as it is almost as large and has a similar composition. As an interior planet to Earth, Venus (like Mercury) appears in Earth's sky never f ...
. There are theories that some of his famous female protagonists had them as well, such as Juliet Capulet
Juliet Capulet () is the female protagonist in William Shakespeare's romantic tragedy '' Romeo and Juliet''. A 13-year-old girl, Juliet is the only daughter of the patriarch of the House of Capulet. She falls in love with the male protagonist ...
, " Jessica and Maria
Maria may refer to:
People
* Mary, mother of Jesus
* Maria (given name), a popular given name in many languages
Place names Extraterrestrial
* 170 Maria, a Main belt S-type asteroid discovered in 1877
* Lunar maria (plural of ''mare''), large, ...
nd Rosalind."
See also
*Cleft chin
The chin is the forward pointed part of the anterior mandible ( mental region) below the lower lip. A fully developed human skull has a chin of between 0.7 cm and 1.1 cm.
Evolution
The presence of a well-developed chin is considered to be one ...
— also known as a "chin dimple"
*Dimples of Venus
The dimples of Venus (also known as back dimples, Duffy Dimples, butt dimples or Veneral dimples) are sagittally symmetrical indentations sometimes visible on the human lower back, just superior to the gluteal cleft. They are directly superfi ...
— nickname for dimples in the lower back, which are portrayed as physically attractive
* Mendelian traits in humans
*Sacral dimple
A sacral dimple (also termed pilonidal dimple or spinal dimple) is a small depression in the skin, located just above the buttocks. The name comes from the sacrum, the bone at the end of the spine, over which the dimples are found. A sacral dimp ...
— lower back dimples
*Skin dimple
Skin dimples (also known as "Skin fossa") are deep cutaneous depressions that are seen most commonly on the cheeks or chin, occurring in a familial pattern suggestive of autosomal dominant inheritance.
See also
* Sinus pericranii
* List of cuta ...
References
Citations
Research and literature cited
*
*
*
*
*
External links
* {{URL, 1=http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=OMIM&dopt=Detailed&tmpl=dispomimTemplate&list_uids=126100 , 2= Possible inheritance of dimples
Facial features
Physical attractiveness