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Table 2 Summarized data of the included studies in the review

From: Qualitative and quantitative assessment of infraoccluded deciduous teeth: a systematic review

Author

Year

Localisation

Examination

Measurement

Reference for measurement

Classification of infraocclusion

Method

Rune [23]

1971

upper and lower jaw

occlusal offset

none

distance from the occlusal surface of the infraoccluded deciduous tooth to the occlusal plane (connecting line of the incisal edge of the deciduous canine, the incisors and the cusps of all teeth in occlusion)

none

clinical examination, dental casts

  

upper and lower jaw

alveolar ridge

none

none

 

radiographs (intraoral radiographs)

Brearley, McKibben [16]

1973

upper and lower jaw

occlusal offset

  

slight: occlusal surface is located approximately 1 mm below the occlusal plane, moderate: occlusal surface is at the height of the contact point of one or both adjacent teeth, severe: occlusal surface is located at the level of or below the gingiva

clinical examination, radiographs (intraoral radiographs)

Darling, Levers [17]

1973

upper and lower jaw

occlusal offset

absolute in millimeters

distance from the occlusal surface of the infraoccluded deciduous tooth to the occlusal plane (connecting line of the cusps or midpoint between lingual and buccal cusps of the adjacent teeth)

(1) slight, (2) marked (3) occlusal surface of tooth only just visible, (4) very deep, (5) very deep and “floating” free in an abscess cavity

dental casts, radiographs (intraoral radiographs)

Sullivan [49]

1976

upper and lower jaw

occlusal offset

  

according to Darling and Levers, 1973

not specified

Messer, Cline [6]

1980

upper and lower jaw

occlusal offset

  

slight: occlusal surface of the infraoccluded deciduous tooth is approximately 1 mm below the occlusal plane (closest to non-affected neighboring teeth), moderate: occlusal surface is at the height of the contact point of one or both adjacent teeth, severe: occlusal surface is located at the level of or below the papilla

dental casts

  

upper and lower jaw

alveolar ridge

not specified

attachment loss in relation to the height of the alveolar ridge

 

radiographs (intraoral radiographs)

Brown [46]

1981

upper and lower jaw

skeletal growth pattern

 

anterior/posterior facial height (perpendicular distance nasion - maxillary plane - menton/gonion), anterior/posterior maxillary height (maxillary plane - menton/gonion)

 

radiographs (lateral cephalograms), extraoral photographs

Koyoumdjisky-Kaye, Steigman [50]

1982

upper and lower jaw

occlusal offset

  

according to Brearley and McKibben, 1973

dental casts

Koyoumdjisky-Kaye, Steigman [5]

1982

upper and lower jaw

occlusal offset

  

according to Brearley and McKibben, 1973

dental casts

Kula et al. [47]

1984

upper and lower jaw

skeletal growth pattern

 

sella-nasion - sella gnathion angle, sella-nasion - mandibular plane angle

 

radiographs (lateral cephalograms)

Kurol [1]

1984

upper and lower jaw

occlusal offset

absolute in millimeters

not specified

 

not specified

Kurol, Thilander [8]

1984

upper and lower jaw

occlusal offset

absolute in millimeters

distance from the occlusal surface of the infraoccluded deciduous tooth to the occlusal plane (connecting line of the mesiobuccal cusp of the first permanent molar and the incisal edge of the central incisors)

 

dental casts

  

lower jaw

alveolar process

absolute in millimeters

distance from the most coronal point of the furcation of the first permanent molar to the inferior border of the mandible

 

radiographs (panoramic radiographs)

Kurol, Thilander [20]

1984

upper and lower jaw

occlusal offset

absolute in millimeters

distance from the occlusal surface of the infraoccluded deciduous tooth to the occlusal plane (connecting line of the mesiobuccal cusp of the first permanent molar and the incisal edge of the central incisors)

 

dental casts

  

lower jaw

alveolar process

absolute in millimeters

distance from the most coronal point of the furcation of the first permanent molar to the inferior border of the mandible

 

radiographs (panoramic radiographs)

Kurol, Koch [42]

1985

lower jaw

occlusal offset

absolute in millimeters

distance from the occlusal surface of the infraoccluded deciduous tooth to the occlusal plane (connecting line of the mesiobuccal cusp of the first permanent molar and the incisal edge of the central incisors)

 

dental casts

  

lower jaw

alveolar ridge

not specified

not specified

 

radiographs (intraoral radiographs)

Kurol, Olson [45]

1991

upper and lower jaw

occlusal offset

not specified

not specified

 

not specified

  

upper and lower jaw

alveolar ridge

absolute in millimeters

distance from the cementoenemal junction mesial to the first permanent molar to the alveolar ridge

 

radiographs (bitewing radiographs)

Raghoebar et al. [28]

1991

upper and lower jaw

occlusal offset

absolute in millimeters

distance form the occlusal surface of the infraoccluded tooth and the occlusal plane of the affected jaw

 

clinical examination

  

upper and lower jaw

alveolar ridge

not specified

not specified

 

radiographs (intraoral radiographss, panoramic radiographs)

Becker, Karnei-R’em [26]

1992

lower jaw

occlusal offset

absolute in millimeters

distance from the mindpoint of the occlusal table of the infraoccluded deciduous tooth to the connecting line of the midpoints of the occlusal level of the adjacent teeth

 

radiographs (panoramic radiographs)

Becker, Karnei-R’em [10]

1992

lower jaw

alveolar process

absolute in millimeters

distance from the center of the occlusal table of the adjacent teeth to the inferior border of the mandible running parallel to the skeletal midline

 

radiographs (panoramic radiographs)

Bjerklin, Bennett [12]

2000

lower jaw

occlusal offset

absolute in millimeters

distance from the occlusal surface of the infraoccluded deciduous tooth to the connecting line of the cusps of the neighboring teeth

 

radiographs (intraoral radiographs)

Antoniades et al. [51]

2002

upper and lower jaw

occlusal offset

  

partial: infraposition of the ankylosed deciduous tooth ≤ 3 mm, severe: infraposition ≥ 3 mm, occlusal surface visible, total: occlusal surface no longer visible, presence of the tooth only detectable on radiograph

radiographs

Quintero et al. [52]

2003

upper and lower jaw

occlusal offset

  

grade (I) crown of the infraoccluded deciduous tooth is located at the level of the alveolar ridge, grade (II) crown is located below the alveolar ridge

radiographs

Mass et al. [18]

2004

lower jaw

alveolar ridge

in millimeters by pixel analysis

distance from the cementoenemal junction of the infraoccluded deciduous tooth/neighboring teeth/antagonist to the alveolar ridge

 

radiographs (bitewing radiographs)

Leonardi et al. [22]

2005

lower jaw

skeletal growth pattern

 

condyle-gnathion angle, condyle-gonion angle, stable basicranial line angle, ramus angle (posterior border of the ramus - condyle), mandibular plane angle (inferior border of the ramus - gnathion)

 

radiographs (lateral cephalograms)

Bjerklin et al. [53]

2008

lower jaw

occlusal offset

absolute in millimeters

according to Bjerklin and Bennett, 2000

 

radiographs (dental film, bitewing radiographs)

Kjaer et al. [11]

2008

lower jaw

occlusal offset

  

mild: occlusal surface of the infraoccluded deciduous tooth is equal to or less than half crown height below the occlusal plane, moderate: occlusal surface is half to full crown height below the occlusal plane, severe: occlusal surface is equal to or more than full crown height below the occlusal plane, extreme: deciduous tooth is deeply subgingival located, occlusal surface is equal to or more than one and a half crown height below the occlusal plane

radiographs (panoramic radiographs, intraoral radiographs)

  

lower jaw

alveolar process

absolute in millimeters

shortes distance from the alveolar ridge to the inferior border of the mandible through the midpoint of the mesio-distal collum width of the infraoccluded deciduous tooth

 

radiographs (panoramic radiographs, intraoral radiographs)

Shalish et al. [14]

2010

upper and lower jaw

occlusal offset

absolute in millimeters

distance from the distal marginal ridge of the infraoccluded deciduous tooth to the mesial marginal ridge of the first permanent molar

mild: 1–2 mm, moderate: >2 mm < 5 mm, severe: >5 mm

dental casts

Silvestrini Biavati et al. [54]

2011

upper and lower jaw

occlusal offset

absolute in millimeters

according to Darling and Levers, 1973

(1) 1–2 mm, (2) 2.5–4 mm, (3) 4.5–9 mm

dental casts

Dias et al. [44]

2012

lower jaw

occlusal offset

absolute in millimeters

distance from the occlusal surface of the infraoccluded deciduous tooth to the occlusal plane (connecting line of the first permanent molar and canine)

mild: occlusal surface of the infraoccluded deciduous tooth is approximately 1 mm below the occlusal plane, moderate: occlusal surface is at the height of or just below the contact point of the adjacent teeth

dental casts, radiographs (panoramic radiographs)

  

lower jaw

alveolar process

absolute in millimeters

vertical change of the contour of the alveolar ridge (first permanent molar to canine) within two panoramic radiographs at least 12 months apart

 

radiographs (panoramic radiographs)

Peretz et al. [19]

2013

lower jaw

occlusal offset

absolute in millimeters

distance from the occlusal level of the infraoccluded deciduous tooth to the occlusal plane (connecting line of the cusps of the neighboring teeth)

 

radiographs (dental film)

   

alveolar ridge

absolute in millimeters

distance from the cementoenemal junction mesial and distal of the infraoccluded deciduous tooth to the alveolar ridge

 

radiographs (dental film)

Cardoso Silva et al. [24]

2014

lower jaw

occlusal offset

absolute in millimeters

according to Bjerklin and Bennett, 2000 modification: distance from the occlusal surface of the infraoccluded deciduous tooth to the connecting line of the cusps

of the neighboring mesial tooth and the most distal and totally erupted permanent first molar or primary second molar

mild: 1.0–1.9 mm, moderate: 2.0–2.9 mm, severe: ≥3 mm

radiographs (panoramic radiographs)

Hvaring et al. [15]

2014

lower jaw

occlusal offset

relative in millimeters

ratio of the crown height of the first permanent molar (y-axis) and the distance from the most prominent distal cusp of the infraoccluded deciduous tooth to the occlusal plane (perpendicular to the y-axis)

 

radiographs (panoramic radiographs)

Shalish et al. [55]

2014

upper and lower jaw

occlusal offset

absolute in millimeters

vertical distance from the marginal ridge of the infraoccluded deciduous tooth and the marginal ridge of the neighboring first permanent molar

 

dental casts

Odeh et al. [13]

2015

upper and lower jaw

occlusal offset

absolute in millimeters

distance from the occlusal surface of the infraoccluded deciduous tooth to the occlusal plane (marginal ridge of the first permanent molar to the incisal edge of the deciduous canine)

mild: 1 mm to < 2 mm, moderate: 2 mm to < 3 mm, severe: ≥3 mm

dental casts, radiographs (panoramic radiographs)

Odeh et al. [43]

2016

upper and lower jaw

occlusal offset

absolute in millimeters

according to Odeh et al., 2015

according to Odeh et al., 2015

dental casts, radiographs (panoramic radiographs)

Lanteri et al. [21]

2020

lower jaw

occlusal offset

not specified

distance from the occlusal surface of the infraoccluded deciduous tooth to the occlusal plane (connecting line from the most mesial point of the first permanent molar to the canine)

 

radiographs (panoramic radiographs)

  

lower jaw

skeletal growth pattern

 

distance supraorbital point - spina nasalis anterior, distance spina nasalis anterior - menton, gonional angle (upper/lower/total), condyle position, mandibular shape

 

radiographs (lateral cephalograms)

Ciftic et al. [29]

2021

upper and lower jaw

occlusal offset

  

according to Brearley and McKibben, 1973

radiographs (panoramic radiographs)

Alshaya et al. [56]

2022

upper and lower jaw

occlusal offset

  

according to Brearley and McKibben, 1973

radiographs (panoramic radiographs)

Calheiros-Lobo et al. [41]

2022

lower jaw

occlusal offset

absolute in millimeters

distance from the occlusal surface of the infraoccluded deciduous tooth to the occlusal plane (connecting line of the cusps of the neighboring teeth)

 

radiographs (panoramic radiographs)

Eşian et al. [57]

2022

upper and lower jaw

occlusal offset

  

mild: infraposition of the infraoccluded deciduous tooth < 1 mm, moderate: infraposition > 1 mm, severe: occlusal surface below the contact point of adjacent teeth

radiographs (panoramic radiographs)

Renugalakshmi et al. [30]

2023

upper and lower jaw

occlusal offset

absolute in millimeters

according to Odeh et al., 2015

 

radiographs (panoramic radiographs)

Akgöl et al. [38]

2024

upper and lower jaw

occlusal offset

absolute in millimeters

distance from the occlusal surface of the infraoccluded deciduous tooth to the occlusal plane (connecting line of the cusps of the neighboring teeth)

according to Kjaer et al. 2008

radiographs (panoramic radiographs)

Ishizuka et al. [58]

2024

upper and lower jaw

occlusal offset

absolute in millimeters

distance from the occlusal surface of the infraoccluded deciduous tooth to the occlusal plane (connecting line of the cusps of the neighboring teeth); in the case of an angulation of the adjacent teeth a line was drawn between the tips of the highest cusps

 

radiographs (panoramic radiographs)

Marcianes et al. [59]

2024

lower jaw

occlusal offset

absolute in millimeters

according to Odeh et al., 2015, in the case of lacking the ipsilateral deciduous canine according to Cardoso et al., 2014

 

radiographs (panoramic radiographs)