Table 1 Collection of MRONJ rodent models established by the classical method

From: Establishment and assessment of rodent models of medication-related osteonecrosis of the jaw (MRONJ)

Species

Age/week

Sex

Drug

Dose /(mg·kg−1)

Frequency

Administration

route

Induction time/week

Times of administration

Extraction site

Interval

Total duration/week

MRONJ characteristics

Success rate

Ref.

Rat

4

F

ZA + DEX

ZA: 0.066

DEX: 5

Thrice a week

SC

6

36

The right max M1

TE after 2 weeks of drug administration

6

Exposed NB, incomplete epithelial continuity; EL; bone formation↓BV/TV↓

100%

59

Mouse

8

F

ZA

ZA: 0.5

Weekly

SC

8

8

The right man M1, M2

TE after 2 weeks of drug administration

8

Formation of EL

ND

114

Nude mouse

8–10

F

mAb

mAb: 10

Thrice a week

IP

Approximately 4

12

The left max M1

TE conducted 1 week after the first antibody injection

Approximately 4

Absence of OCs and accumulation of NB

ND

61

Rat

12

F

ZA

ZA: 0.035

Once every 2 weeks

IV

8

4

The right man M1

TE after 3 weeks of drug administration

11

NB area↑; number of stranded OCs↑

33.3%

44

Rat

7

ND

ZA

ZA:0.066

Weekly

IP

1–2

1/2/3

Man M1, M2 of both sides

TE after 1 week of drug administration

Approximately 3

Alveolar mucosal defects, granulation tissue, and exposed bone; BV/TV↓; osteonecrosis and EL↑; numbers of OCs↓

ND

97

Rat

12

ND

ZA

ZA: 0.04 mg per rat

Weekly

TVI

5

5

The right max M1

TE on the 7th week(drug induction has finished)

15

Exposed NB

100%

62

Rat

10–12

F

ZA + DEX

ZA: 0.1

DEX: 1

ZA:thrice a week for 4 weeks +ZA: 4 times a week, DEX: weekly for 3 weeks

IP

7

27

The right max molars

TE on the 11th week (drug induction has finished)

14

BE; number of EL↑; number of blood vessels↓

25%

45

ZA: 0.1

DEX: 1

ZA: Thrice a week for 4 weeks +ZA: 4 times a week, DEX: Weekly for 3 weeks + additional ZA for 3 weeks

10

39

50%

 

Rat

8

F

ZA + DEX

ZA: 0.066

DEX: 5

Thrice a week

SC

4

24

The left max M1

TE after 2 weeks of drug administration

4/6

Exposed NB and EL; average number of OCs per linear bone perimeter↓; BV/TV, Tb.N, Tb.Th↓Tb.Sp↑

100%

46

Rat

8

M

ZA

ZA: 0.16

5 times at Weekly intervals

Jugular vein injection

5

25

The right max M1

TE after 3 d after the third administration

5

BE; EL

100%

63

Rat

12

F

ZA

ZA: 0.1

Thrice a week

IP

9

27

The left max molars

TE after 7 weeks of drug administration

11

BE without abscess nor fistula; the number of osteocytes ↓EL↑; TNF-α and IL-1β in the gingival tissue↑

91.66%

47

Rat

16–18

F

ZA

ZA: 0.1

Thrice a week

IP

6/7

18/21

The left man M1

TE after 3 weeks of drug administration

6/7

Abscesses with purulent content; no clear signs of bone formation; EL

ND

55

Rat

10

M

ZA + DEX

ZA: 0.1

DEX: 1

Twice a week

SC

6

24

The right max M1

TE after 2 weeks of drug administration

6

Unhealed oral mucosa, exposed NB, number of polymorphonuclear cells, and EL↑

66.67%

64

Rat

4

F

ZA + DEX

ZA: 0.066

DEX: 5

Thrice a week

Percutaneous injection

4

24

The right max M1

TE after 2 weeks of drug administration

4

Exposed NB, incomplete epithelial continuity, insufficient formation of connective tissue, and infiltration of white blood cells

100%

60

Rat

9

F

ZA + DEX

ZA: 0.035

DEX: 1

ZA: Weekly DEX: Everyday

ZA: TVI DEX: IP

3

24

The left max molars

TE after 3 weeks of drug administration

5/11

The socket was not covered with mucosa; exposed alveolar bone; BV/TV↓

ND

48

Rat

9–11

M

ALN + DEX

ALN: 0.2

DEX: 1

Everyday

SC

ALN: 2 DEX: 4d

18

The unilateral M1, M2

ALN injection once daily for 14 days, starting the day of TE, plus 1 mg·kg−1 DEX once daily for 4 d, starting 2 d before TE

Approximately 2

Open wounds; erythema; exposed bone; infection and osteonecrosis

84.62%

68

Mouse

8–10

F

ZA + DEX

ZA: 0.125

DEX: 5

Weekly

TVI

8

16

Bilateral max M1

TE after 2 weeks of drug administration

10

Inflammatory infiltration and unhealed mucosa; the NB; wound healing↓; BV/TV↓; numerous osteocytes with EL, inflammatory infiltrates, and the mucosa exposed chronically

Histopathologic: 78% Gross: 56%

31

Rat

4

F

ZA + DEX

ZA: 0.125

DEX: 5

ZA: Twice a week DEX: Weekly

IP

4

12

The right man M1

TE after 4 weeks of drug administration

12

Incomplete wound healing and the presence of exposed bone; BV/TV, Tb.N, BMD↓Tb.Sp↑; EL↑TRAP-positive cells↓

100%

69

Mouse

8–12

F

ZA + CY

ZA: 0.05

CY: 100

Twice a week

ZA: SC CY: IP

Prevention:7 Treatment:5

20/28

The max M1

TE after 3 weeks of drug administration

7/9

Bone fill↓; EL↑

ND

115

Mouse

8

F

ZA + CY

ZA: 0.05

CY: 150

ZA: Twice a week CY: Twice and once a week before and after tooth extraction

ZA: SC CY: IP

5/7

18/24

The max M1

TE after 3 weeks of drug administration

5/7

Exposed bone; wound open areas↑; OCs on bone surfaces of tooth extraction sockets↓; serum TRAcP5b levels↓; living bone and osteocyte density↓; NB and the number of EL↑; Tb.N, Tb.Th↓Tb.Sp↑

92.8%

 
   

mAb+CY

mAb: 5

CY: 150

mAb: Once every 3 weeks CY: Twice and once a week before and after tooth extraction

mAb: SC CY: IP

 

9/12

    

92.8%

51

   

ZA/CY/mAb

ZA: 0.05/ CY: 150/ mAb: 5

ZA: Twice a week CY: Twice and once a week before and after tooth extraction mAb: Once every 3 wks

ZA: SC CY: IP mAb: SC

 

1/2/8/10/14

    

CY : 50%

ZA: 0

 

Rat

8

M

ZA + DEX

ZA: 0.125

DEX: 5

ZA: Twice a week DEX: Weekly

IP

5

15

The left max M1

TE after 1 week of drug administration

5

BE; soft tissue unhealed

80%

65

Mouse

8

F

mAb+CY

mAb: 5

CY: 150

mAb: Once every 3 weeks CY: Twice and once a week before and after tooth extraction

mAb:SC CY: IP

5/7

9/11

bilateral max M1

TE after 3 weeks of drug administration

5/7

Open wounds with BE; Tb.N, Tb.Th↓Tb.Sp, BMD↑; living bone area, osteocyte density↓; the number of EL↑

5w: 87.5%

52

Rat

ND

M

ZA

ZA: 0.1

Thrice a week

IP

8

24

The right max M1

TE after 1 week rest at the end of the 8th week

13/17

Newly formed bone tissue↓

ND

56

Rat

8-12

F

ZA

ZA: 0.1

Thrice a week

IP

9

27

The right max molars

TE on the 8th week

11

Mucosal ulcerations at the teeth extraction site, frequent exposure of NB; formation of granulation tissue, inflammatory cell infiltrates, fibrosis, and sequestra

33%(implantation of saline/β-TCP constructs)

57

Mouse

8

M

ZA

ZA: 0.125

Twice a week

TVI

4

8

The max M1

TE after 1 week of drug administration

5

Opened extraction site; delay in wound healing; discontinuous keratinized coverage with dead bone formation

40%

116

Rat

8

M

ZA

ZA: 0.04 mg per rat

Twice a week

IP + TVI

5

10

The M1 (the left or right side was randomly determined)

TE on 2 weeks after completion of the drug administration

8

Several empty bone lacunae; marginal bone loss; teeth with necrotic pulps; numerous sequestrates (NBs) with infiltration of acute and chronic inflammatory cells

87.5%

99

Rat

6

F

ZA

ZA: 2.25

Everyday

IP

3

21

The left max molars

TE after 3 weeks of drug administration

Approximately 5/6

Necrosis; new bone formation↓

ND

117

Rat

ND

M

ZA

ZA: 0.035

Every 15 days

TVI

8

4

The right max incisors

TE after the 4th dose

Approximately 9

BE(suppuration and bone sequestration); areas of osteolysis and fracture or loss of socket integrity

40%

118

Rat

16

M

ZA

ZA: 0.1

Weekly

SC

8

8

All left man molars

TE on the 7th week of drug administration

8

pseudo-epitheliomatous epithelium overlying exposed and/or unexposed bone with osteolytic lesions and clusters of EL

76.9%

100

Rat

9–10

ND

ZA

ZA: 0.1

At week 2 and 5

IV

5

2

The right man M1

TE on the 5th week (drug induction has finished)

13

Nonvital bone and EL; bone volume↓

100%

101

Rat

8

F

ZA

ZA: 0.1

Thrice a week

IP

9

27

The right max molars

TE after 9 weeks of drug administration

13/17

Osteonecrosis(10 adjacent EL)

13w: 83.3% 17w: 63.6%

58

Rat

13

F + M

ZA

ZA: 0.0075

Weekly

SC

11

11

Bilateral max M1

TE on the 3rd week of drug administration

11

Clinically exposed bone or a fistula; epithelium discontinuation with fragments of non-vital bone surrounded by non-specific inflammatory infiltrate

25%

103

   

DEX

DEX: 1

   

11

    

0

 
   

ZA + DEX

ZA: 0.0075

DEX: 1

   

22

    

50%

 

Mouse

8–12

F

ZA + CY

ZA: 0.05

CY: 150

ZA: Twice a week CY: Twice and once a week before and after tooth extraction

ZA: SC CY: IP

5

18

Max M1

TE after 3 weeks of drug administration

5

Open wounds; EL, living bone↓; the number of OCs↓

92.8%

119

Mouse

7–10

F

ZA

ZA: 0.1, 0.3, 0.5, 0.7 or 0.9

A bolus IV injection

IV

Once

1

The left max M1

TE after 1 week of drug administration

3

Abnormal oral mucosa swelling; osteonecrosis area↑

ND

66

Rat

10

F

ZA

ZA: 0.06

Weekly

TVI

2

2

The unilateral man M1

TE on the 2nd week of drug administration(1 wk after the first dose)

4/9

Discolored, brownish exposed bone, sometimes with accompanying pus discharge; small bone fragments suggestive of sequestra; EL

4w: 85.7% 9w: 57.1%

120

Rat

20

M

ZA

ZA: 0.06

Weekly

IV

6

7

The right man M1

TE after 1 week after the last drug administration

15

Extraoral signs of osteonecrosis; BE or fistula

78.3%

70

Rat

8

F

ZA

ZA: 0.08

Weekly

TVI

10

10

The right max M1, M2

TE after 2 weeks of drug administration

10

Exposed bone; BV/TV↓; open sockets with unhealed mucosa and the connective tissue collapsed; large amounts of NBs, empty bone lacunae; inflammatory cell infiltration and few OCs

61.5%

71

Rat

5

F

ZA + DEX

ZA: 0.0075

DEX: 7

ZA: 2/4/7 times within 14 days DEX: Everyday

SC

2

16/18/21

Three right molars

TE after the end of drug administration

4

Unhealed wound areas; ulcerated connective tissue; thin trabeculae, lined with multinuclear OCs; marrow spaces infiltrated with the inflammatory cells

2-ZA/DX: 20% 4/7-ZA/DX: 100%

121

Rat

5

M

ZA + DEX

ZA: 0.1

DEX: 1

Thrice a week

ZA: IP DEX: IM

10

60

Bilateral max M1

TE after 9 weeks of drug administration

10

Newly-formed woven bone inside the socket↓; areas of NB which were not lined by OCs; NB↑

ND

72

Rat

6–8

F

ZA + DEX

ZA: 0.2

DEX: 5

ZA: Weekly DEX: Thrice a week

ZA: TVI DEX: SC

8

32

The right max M1

TE after 8 weeks of drug administration

16

Incomplete mucosal healing and BE; destruction of cortical bone; the NB areas with EL

100%

67

Rat

12

F

ZA

ZA: 0.066

Thrice a week

IP

6/8/12

18/24/36

The right man and max M1

TE after 4 weeks of drug administration

6/8/12

BE; osteonecrosis (continued EL up to 5 in a row)

ND

104

  1. F female; M male; max maxillary; man mandibular; M1 first molar; M2 second molar; ND data not found, ref. Reference
  2. TE tooth extraction; NB necrotic bone; BE bone exposure; OCs osteoclasts; EL empty lacunae
  3. ZA zoledronic acid/zoledronate; DEX dexamethasone; mAb rat anti-mouse RANKL monoclonal antibody; CY cyclophosphamide; ALN alendronate
  4. SC subcutaneous injection; IV intravenous injection; IP intraperitoneal injection; IM intramuscular injection; TVI tail vein injection
  5. BV/TV bone volume/tissue volume; Tb.Sp trabecular separation; Tb.N trabecular number; Tb.Th trabecular thickness; BMD bone mineral density
  6. TNF-α tumor necrosis factor-α; IL- interleukin-1β; TRAP tartrate-resistant acid phosphatase; TRAcP5b TRAP isoform 5b; β-TCP β-tricalcium phosphate