✴ Complete Denture Classification

Front 1

CLASS OF EDENTULISM most apt to be successfully treated w/ complete dentures using conventional prosthodontic techniques

Back 1

Class I edentulism

Front 2

CLASS I EDENTULISM: residual bone height (measured @ point of least mandibular height on panoramic radiograph)

Back 2

≥ 21 mm

Front 3

CLASS I EDENTULISM: maxillomandibular relationship class

Back 3

Class I maxillomandibular relationship

Front 4

CLASS I EDENTULISM: maxilla & mandible types

Back 4

Type A maxilla & Type A or B mandible

Front 5

MAXILLA TYPE: most favorable edentulous residual ridge

Back 5

Type A maxilla

Front 6

MAXILLA TYPE: labial & posterior buccal vestibular depth resist vertical & horizontal movement of denture base

Back 6

Type A maxilla

Front 7

MANDIBLE TYPES: location of muscle attachments conducive to (or w/ limited influence on) denture base stability & retention

Back 7

Type A or Type B mandible

Front 8

MAXILLA TYPE: edentulous residual ridge w/ sufficient tuberosity definition to resist vertical & horizontal movement of denture base

Back 8

Type A maxilla

Front 9

MAXILLA TYPE: palatal morphology resists vertical & horizontal movement of denture base

Back 9

Type A maxilla

Front 10

MAXILLA TYPE: hamular notch is well-defined to establish posterior extension of denture base

Back 10

Type A maxilla

Front 11

MAXILLA TYPE: loss of posterior buccal vestibule

Back 11

Type B maxilla

Front 12

MAXILLA TYPE: palatal vault morphology resists vertical & horizontal movement of denture base

Back 12

Type B maxilla

Front 13

MAXILLA TYPE: tuberosity & hamular notch are poorly-defined, compromising delineation of posterior extension of denture base

Back 13

Type B maxilla

Front 14

CLASS OF EDENTULISM distinguished by continued physical degradation of denture-supporting anatomy; characterized by early onset of systemic disease interactions, patient management, &/or lifestyle considerations

Back 14

Class II edentulism

Front 15

CLASS II EDENTULISM: residual bone height (measured @ point of least mandibular height on panoramic radiograph)

Back 15

16-20 mm

Front 16

CLASS II EDENTULISM: maxilla & mandible types

Back 16

Type A or B maxilla & Type A or B mandible

Front 17

CLASS II EDENTULISM: maxillomandibular relationship class

Back 17

Class I maxillomandibular relationship

Front 18

MAXILLA TYPES: residual ridge morphology resists vertical & horizontal movement of denture base (i.e. acceptable maxilla types for Class II edentulism)

Back 18

Type A or B maxilla

Front 19

CLASS OF EDENTULISM characterized by need for surgical revision of supporting structures to allow for adequate prosthodontic function

Back 19

Class III edentulism

Front 20

CLASS III EDENTULISM: residual bone height (measured @ point of least mandibular height on panoramic radiograph)

Back 20

11-15 mm

Front 21

CLASS III EDENTULISM: maxilla & mandible type

Back 21

Type C maxilla & mandible

Front 22

CLASS III EDENTULISM: maxillomandibular relationship classes

Back 22

Class I, II, or III maxillomandibular relationship

Front 23

MAXILLA TYPE: loss of anterior labial vestibule

Back 23

Type C maxilla

Front 24

MAXILLA TYPE: palatal vault morphology offers minimal resistance to vertical & horizontal movement of denture base

Back 24

Type C maxilla

Front 25

MAXILLA TYPE: palatal tori &/or lateral exostoses w/ bony undercuts that do not affect posterior extension of denture base

Back 25

Type C maxilla

Front 26

CLASS OF EDENTULISM depicting most debilitated edentulous condition, in which surgical reconstruction is almost always indicated but cannot always be accomplished because of patient's health, preferences, dental history, &/or financial considerations (when surgical revision is not an option, specialized prosthodontic techniques must be used to achieve adequate treatment outcome)

Back 26

Class IV edentulism

Front 27

CLASS IV EDENTULISM: residual bone height (measured @ point of least mandibular height on panoramic radiograph)

Back 27

≤ 10 mm

Front 28

MAXILLA TYPE: residual ridge offers no resistance to vertical or horizontal movement of denture base

Back 28

Type D maxilla

Front 29

MAXILLA TYPE: loss of anterior labial & posterior buccal vestibules

Back 29

Type D maxilla

Front 30

MAXILLA TYPE: palatal vault morphology offers no resistance to vertical or horizontal movement of denture base

Back 30

Type D maxilla

Front 31

CLASS IV EDENTULISM: 4 types of preprosthetic surgery frequently indicated

Back 31

1) complex implant placement augmentation
2) correction of dentofacial deformities
3) hard tissue augmentation
4) major soft tissue revision, vestibular extensions w/ or w/o soft tissue grafting