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Table 3 Characteristics of the included studies are as follows

From: Accuracy of artificial intelligence in caries detection: a systematic review and meta-analysis

Sl

Authors

Year

Study Design

AI algorithm

No. of sample

X-ray type

Comparator

Evaluation

Outcomes

1

Chen et al

2023 [17]

Retrospective

CNNs, Efficient Net

11,000

Digital periapical radiographs

Trained dental professionals

Accuracy of 95.44%, sensitivity 94.15%, specificity 95.47%,

ROC AUC 98.31%

With convolutional neural networks (CNNs), the EfficientNet-B0 model outperforms the status quo

2

Zhu et al

2022 [18]

Retrospective

CNNs

1159

Panoramic radiographs

Reference models

Accuracy: 93.64%, precision: 94.09%, mean dice coefficient: 93.64%, F1 score: 92.87%, and recall: 86.01%

The CNN model successfully separated the caries from the panoramic x-rays

3

Bayraktar et al

2022 [19]

Cross sectional

CNNs

1000

Digital bitewing radiographs

2 Trained dental professionals

Accuracy of 94.59%, sensitivity was 72.26, specificity was 98.19%, PPV was 86.58%, NPV was 95.64% and overall AUC was 87.19%

With respectable accuracy rates, this CNN-based model performed admirably

4

Huang et al

2021 [20]

Cross sectional

CNNs

748

OCT and micro-CT images

Dental surgeons

Accuracy 95.21%, Sensitivity of 98.85% specificity of 89.83%,

PPV of 93.48% and NPV was 98.15%,

ResNet-152 When comparing OCT pictures of teeth, CNNs models outperform physicians in identifying abnormal structures

5

Mao et al

2021 [21]

Cross sectional

CNNs

278

Bitewing radiographs

Reference models GoogleNet, Vgg19, and ResNet50

Accuracy 95.56%

AlexNet model demonstrated high accuracy in comparison to other models

6

De Araujo Faria et al. 2021 [22]

Retrospective

ANNs

15

Digital Panoramic radiographs

2 Expert dental surgeon

Accuracy of 98.8%

AUC = 0.9869

The model's ability to detect and diagnose caries was highly accurate

7

Hur et al

2021 [23]

Retrospective

ANNs

2642

Panoramic radiographs and CBCT images

Single predictors as reference

ROC of 0.88 to 0.89

ANNs have better accuracy

8

Lee et al

2021 [24]

Cross sectional

CNNs

354

Bitewing radiographs

dental surgeon

Precision 63.29%; recall 65.02%; F1-score 64.14%

This CNNs model displayed significant performance in detecting caries lesion

9

Vinayahalingam et al. 2021 [25]

Retrospective

CNNs

500

Panoramic radiographs

Reference standards

Accuracy of 0.87, sensitivity of 0.86, specificity of 0.88, AUC of 0.90, F1 score of 0.86

This AI model displayed skilled performance in detecting caries in third molars

10

Mertens S et al

2021 [26]

Randomized control trial

CNNs

140

Bitewing radiographs

dental surgeon

ROC of 0.89

sensitivity of 0.81

AI model demonstrated statistically significant performance compare to dentist

11

Moran et al

2021 [27]

Cross sectional

CNNs

112

Digital bitewing radiographs

ResNet model

Accuracy of 73.3%

Better accuracy compare to the reference model

12

Lian et al

2021 [28]

Cross sectional

CNNs

1160

Panoramic radiographs

dental surgeon

IoU 0.785, Dice coefficient values of 0.663

Accuracy of 0.986 recall rate of 0.821

These models displayed similar results to that of expert dentists

13

Zheng et al

2021 [29]

Cross sectional

CNNs

844

Radiographs

VGG19, Inception V3, dental surgeon

Accuracy = 0.82, precision = 0.81, sensitivity = 0.85 specificity = 0.82, AUC = 0.89,

CNN model ResNet18 showed good performance

14

Bayrakdar et al

2021 [30]

Retrospective

CNNs

621 patients (2325 images, 2072 for training, 200 for validating and 53 for testing)

Bitewing radiographs

dental surgeon

For caries detection sensitivity 0.84, precision 0.81, and F-measure rates 0.84 and for caries segmentation were sensitivity 0.86, precision 0.84, and F-measure rates 0.84

These models can accurately detect DC. There were also beneficial in the segmentation of DC

15

Devlin et al

2021 [31]

Randomized control trial

CNNs

24

Bitewing radiographs

dental surgeon

High accuracy of diagnosis with sensitivity of 71% and decrease in specificity of 11% are statistically significant (p < 0.01) in comparison with expert dentists

This model significantly improved dentists’ ability to detect enamel-only proximal caries

16

Chen et al

2021 [32]

Retrospective

CNNs

2900

Digital periapical radiographs

Reference models with dental surgeon

DC and PDL were detected with precision, recall, and average precision values less than 0.25 for mild level, 0.2–0.3 for moderate level and 0.5–0.6 for severe level

Lesions were generally detected with precision and recall between 0.5–0.6 at all levels

This models can detect caries using periapical radiographs

17

Geetha et al

2020 [33]

Cross sectional

ANNs

145

Digital periapical radiographs

dental surgeon

Accuracy of 97.1%, false positive (FP) rate of 2.8%, ROC area of 0.987 and PRC area of 0.987

This AI model can predict caries more accurately

18

Cantu et al

2020 [34]

Retrospective

CNNs

3293

Bitewing radiographs

4 dental surgeon

Accuracy of 0.80; sensitivity of 0.75, specificity of 0.83

This CNN-based model was significantly more accurate than the experienced dentists

19

Choi et al

2018 [35]

Retrospective

CNNs

475

Digital periapical radiographs

Dental surgeon and raw CNN reference models

F1max 0.74 with False Positives 0.88

This model was superior to the system using a naïve CNN

20

Lee et al

2018 [36]

Retrospective

DCNNs

2400

Digital periapical radiographs

Not mentioned

Accuracy of 89.0%, 88.0%, 82.0% and AUC of 0.917, 0.890, 0.845

This CNNs-based model demonstrated good performance in detecting DC

21

Srivastava et al

2017 [37]

Retrospective

FCNN

3000

Digital periapical radiographs

3 experienced dentists

F1-score 70%,

accuracy 80.5–61.5%

Better performance than comparator dentist

  1. CNNs Convolutional neural networks, ANNs Artificial neural networks, DCNNs Deep neural networks, CT Computed tomography scans, CBCT Cone-beam computed tomography